What is *The Geometry of Wealth* about?

*The Geometry of Wealth* examines how money fuels a meaningful life, distinguishing between being rich (material abundance) and being wealthy (funded contentment). Using shapes like circles (purpose), triangles (priorities), and squares (tactics), Portnoy blends behavioral finance with life philosophy to help readers align finances with personal values.

Who should read *The Geometry of Wealth*?

This book suits investors seeking purpose-driven strategies, individuals balancing money and happiness, and anyone interested in behavioral finance. Its non-technical approach appeals to both financial novices and experts looking for holistic wealth management insights.

Is *The Geometry of Wealth* worth reading?

Yes. Praised for its clarity and depth, the book offers actionable advice without jargon. It’s ideal for redefining wealth beyond monetary success, making it a standout in personal finance literature.

Who is Brian Portnoy?

Brian Portnoy, Ph.D., CFA, is a behavioral finance expert with over 20 years in hedge funds and mutual funds. Founder of Shaping Wealth, he’s authored multiple books on money and happiness, holds a doctorate from the University of Chicago, and advocates for decision-focused financial education.

What does the circle represent in *The Geometry of Wealth*?

The circle symbolizes life’s purpose, emphasizing how money should fund happiness. Portnoy argues that aligning financial goals with core values—like relationships or personal growth—creates enduring contentment.

How does Brian Portnoy define true wealth?

True wealth is “funded contentment”—the ability to sustain a fulfilling life through intentional resource allocation. It prioritizes emotional well-being over mere financial accumulation.

What are the key priorities in *The Geometry of Wealth*?

The triangle framework highlights three priorities: setting clear goals, making adaptive decisions, and simplifying strategies. This approach balances long-term planning with flexibility to navigate life’s uncertainties.

What investment tactics does the book recommend?

Portnoy advocates low-cost index funds, diversification, and long-term discipline. The square metaphor underscores sticking to straightforward tactics rather than chasing market trends.

ジオメトリー・オブ・ウェルス ―― 幸せのための「お金」の設計図

お金と意味のある人生を形作る方法

ブライアン・ポートノイ

3.81(623 Reviews)

『ジオメトリー・オブ・ウェルス ―― 幸せのための「お金」の設計図』の概要

『The Geometry of Wealth（富の幾何学）』の中で、ブライアン・ポートノイは、円、三角形、四角形といった「形」が、単なるお金を超えた真の富への秘密をどのように解き明かすかを明らかにしています。このアキシオム・ビジネス・ブック・アワード金賞受賞作は、次のような問いを投げかけます。「幾何学的なシンプルさは、財務上の意思決定と意味のある幸福との間の溝を、本当に埋めることができるのだろうか？」

語り方を選ぶ

1冊の本。さまざまな聴き方。

ジオメトリー・オブ・ウェルス ―― 幸せのための「お金」の設計図の同じアイデアを、あなたに合う声・深さ・ペースで学べます。いつでも切り替えられます。

第1章

The Pursuit of Wealth Beyond Money: A Geometric Journey

Money often bewilders us, yet we rarely discuss it openly. In "The Geometry of Wealth," Brian Portnoy offers a refreshing perspective-wealth isn't about being rich but about "funded contentment," the ability to underwrite a meaningful life. This book has resonated deeply with readers seeking financial wisdom beyond technical jargon, becoming a staple recommendation among financial advisors and life coaches. Celebrities like Ashton Kutcher have praised its accessible approach to complex financial concepts, while universities increasingly adopt it in personal finance curricula. What makes this book stand out in the crowded financial literature landscape is Portnoy's unique geometric framework-using three simple shapes to navigate the journey from mindset to action, making profound financial wisdom accessible to everyone.

第2章

The Geometry of Life: Three Shapes to Guide Your Journey

The journey to true wealth follows a path marked by three geometric shapes: a circle representing purpose, a triangle showing priorities, and a square simplifying decisions. This framework bridges philosophy with practical action through a principle Portnoy calls "adaptive simplicity"-accepting life's inevitable complexity while finding ways to cut through the noise. Unlike most financial guides that focus either on broad philosophy or technical details, Portnoy's approach creates a seamless narrative connecting mindset to action. Each shape represents a distinct step: adaptation (finding purpose), prioritization (setting financial priorities), and simplification (making sound decisions). This progression moves from the most important to the least, from abstract to actionable. The journey begins with the circle of purpose-discovering what gives our lives meaning. Though deeply personal, the process of navigating life's ups and downs is universal. Money and happiness maintain a complicated relationship; research shows that beyond a modest income, more money doesn't necessarily increase happiness. However, when spent wisely in service of purpose, it can make a positive difference. The triangle establishes priorities for our money lives: protecting against potential loss, planning everyday money flow, and positioning ourselves to fund life's pursuits. A second triangle bridges planning to investment decisions through behavior (most important), portfolio management, and specific investments. Finally, the square approaches tactical decision-making through managing expectations. Simplification becomes key-met expectations lead to happiness, while unmet ones create sadness. Despite common perception, finance isn't a precise science with "right" answers. The square reveals that the game is more winnable than it appears, though getting from complex to simple requires methodical thinking.

聴きながら、すべての言葉を目で追えます

『ジオメトリー・オブ・ウェルス ―― 幸せのための「お金」の設計図』の一語一語が音声に合わせてリアルタイムでハイライトされ、自然に読み進められます。

第3章

The Modern Financial Dilemma: Alone Together

We face a paradoxical reality: we must manage our financial lives individually while sharing universal concerns about money. Money courses through both daily decisions and grand contemplations, acting as the oil in life's engine. Our money life spans four dimensions: earning (making a living), spending (navigating consumption), saving (setting aside unspent earnings), and investing (putting capital at risk for growth). Modern life has thrust unprecedented financial responsibility upon us. Since the 1980s, workers with pension coverage have shrunk from 62% to 17%, while those with only 401(k) plans have grown from 12% to 71%. This forced responsibility collides with our discomfort discussing money-surveys show it's more stressful than death, politics, or religion. Most find money talk embarrassing, inappropriate, or intimidating, creating a dangerous combination of responsibility and widespread financial illiteracy. Our human wiring often leads to poor financial decisions. While the basic investment rule is "buy low, sell high," we collectively do the opposite. When markets rise, we feel calm and excited, making us want to invest more. When markets fall, we feel insecure and avoid buying. Data from 2003-2012 shows this pattern clearly: investors placed $660 billion into equity funds during the pre-crash bull market, then withdrew over $500 billion during and after the crash, missing the best buying opportunity in years. The final challenge we face is a narrowing runway for financial success. Real wages have stagnated since the 1970s, while automation threatens not just blue-collar jobs but white-collar professions. Martin Ford's comparison is telling: in 1979, General Motors employed 840,000 people to earn $11 billion in profits, while in 2012, Google needed just 38,000 employees to generate $14 billion. Meanwhile, investment returns are likely to be lower than the exceptional performance of the past 30 years, creating a difficult landscape that we must navigate despite our limitations.

第4章

Adaptive Simplicity: The Engine of Wealth

Humans are extraordinary problem solvers with dual-process minds that empower us to navigate complex environments. "Adaptive simplicity" is Portnoy's shorthand for making sense of your money life-accepting that change and complexity are unavoidable, while embracing the challenge of cutting through noise. Everyone possesses a two-speed mind: intuitive (System 1) and reasoning (System 2). System 1 operates automatically, continuously monitoring our environment and making quick judgments without conscious effort. System 2 engages for effortful mental activities, transforming impulses into agency and impressions into beliefs. Understanding this mental architecture is crucial for shaping a life of money and meaning. How much agency do we have over our own happiness? Three factors determine human fulfillment: disposition (who we are), circumstance (what we face), and intention (what we do). Surprisingly, our genetic disposition drives about 50% of our happiness, circumstances only 10%, and our intentional actions account for the remaining 40%. This 40% is empowering-it's substantial enough to make a difference while setting reasonable expectations about what we can control. Taking control of your destiny is gratifying, even with incomplete control. Building and executing a plan is itself a source of happiness. Those who fare better in life confront problems rather than avoid them, plan for the future, focus on what they can control, and persist through obstacles. Resilience is where great things are born-we begin once but begin again countless times. The shapes delineate the path, while adaptive simplicity is the engine driving through each stage of the journey. We first define purpose, which requires occasional course-corrections as life knocks us around. Next, we underwrite a meaningful life with a clear, well-articulated strategy. Finally, we simplify the many decisions we must make.

『ジオメトリー・オブ・ウェルス ―― 幸せのための「お金」の設計図』をもっと深く楽しむ

毎日の新しい気づきを10万件以上のレッスンから
言葉をハイライトして音声と同期
ライブラリを保存して、どの端末からでも利用

第5章

The Four C's: What Really Matters for Happiness

In 2015, the Dalai Lama and Archbishop Desmond Tutu met in India for a profound conversation about life, distinguishing between happiness and joy. While happiness depends on external circumstances, joy is something deeper. The science of happiness reveals four enduring sources of a joyful life-what Portnoy calls the Four C's: Connection (the need to belong), Control (the need to direct one's own destiny), Competence (the need to be good at something worthwhile), and Context (the need for purpose outside oneself). Humans are fundamentally social animals with an unwavering need to belong. Neuroscientist Matthew Lieberman explains in "Social: Why Our Brains Are Wired to Connect" that our brains evolved not just to think but to connect with others-a need as fundamental as food and shelter. The evidence supporting social bonds as crucial to happiness is overwhelming, with researchers like Timothy Wilson noting that "the number one predictor of how happy people are is the quality of their social relationships." Conversely, isolation and loneliness cause profound suffering, with documented links to depression, increased stress, diminished immune function, and cognitive decline. Humans also crave control over their own destiny and resist being told what to do. Research shows people who set their own goals are more engaged and satisfied than those following orders. We value control even when it's illusory. While freedom correlates with happiness, Barry Schwartz's "paradox of choice" reminds us that too many options can make us miserable. Paradoxically, some of humanity's most life-affirming stories come from those deprived of liberty-like Viktor Frankl and Alexander Solzhenitsyn-who found meaning through controlling their attitudes when everything else was taken. Being good at something meaningful provides profound fulfillment beyond just earning a paycheck. As Studs Terkel observed, work is "about a search for daily meaning as well as daily bread." Yet most workers are disengaged, with studies showing only 2-3% highly engaged in some countries. What truly motivates is mastery, choice, and meaningful feedback. Paradoxically, the most meaningful professional accomplishments often involve struggle-what Carol Dweck calls "effort," showing you care enough about something to work for it. Finally, humans need their lives to be embedded in something larger than themselves. Whether through religion, nationalism, or other forms of service, we seek purpose by "belonging to and serving something bigger than the self," as Marty Seligman explains. These Four C's interact and sometimes create tension, particularly between control (self-direction) and connection (group belonging). The key insight is that contentment requires being "self-directed but not self-regarding"-embracing yet transcending ego simultaneously.

第6章

The Money-Happiness Connection: Yes, Not Really, It Depends

The relationship between money and happiness offers a nuanced answer: Yes (money alleviates poverty and can purchase pleasure), Not Really (happiness exists independent of wealth), and It Depends (the science remains inconclusive). While life has objectively improved for many people through increased wealth, better health, and longer lifespans, the relationship between prosperity and happiness remains complex. Drawing on research by Kahneman and Deaton, Portnoy distinguishes between two types of happiness affected differently by money. Experienced happiness (hedonic, System 1) plateaus at around $75,000 annual income, as basic needs are met and daily emotional experiences don't improve with additional wealth. However, reflective happiness (eudaimonic, System 2) continues to increase with higher incomes without a satiation point. This explains the paradoxical feeling many have about money-it both does and doesn't buy happiness, depending on which type we're measuring. Three dynamics explain these divergent paths: hedonic adaptation (we quickly become accustomed to comforts), money's greater effectiveness at reducing sadness than increasing happiness, and money's potential to underwrite the Four C's that constitute reflective happiness. Hedonic adaptation explains why experienced happiness is often fleeting-we quickly become accustomed to improvements in our lives. This operates both at macro levels (as societies adapt to technological innovations) and micro levels (lottery winners and paraplegics both return to baseline happiness levels). What was once amazing becomes normal, creating a "luxury trap" where conveniences transform from luxuries to necessities. Higher income may have more impact on reducing sadness than increasing happiness. Research shows that across everyday activities like commuting or working, more money correlates strongly with less sadness, but not necessarily more happiness. Money provides options for addressing life's adversities-from dead car batteries to leaky roofs-preventing the helplessness that comes with inability to solve problems. Money can buy happiness if spent wisely in three categories that underwrite the Four C's: experiences, others, and time. Experiences provide more happiness than material goods because they deepen social relationships, resist hedonic adaptation through their multi-faceted nature, and become part of our identity. Spending on others-even small amounts-measurably increases happiness compared to personal spending. Finally, money can buy time affluence by eliminating distractions and purchasing conveniences, creating opportunities for meaningful activities.

聴きながら、すべての言葉を目で追えます

第7章

The Triangle of Wealth: Setting Priorities

Funding our dreams requires preparation and making difficult decisions amid life's uncertainties. The strategy for achieving wealth begins with a triangle representing three essential priorities: Protect, Match, and Reach. The first priority in building wealth is protecting what we have. Like Pascal's famous wager about God's existence, wealth-building requires understanding the asymmetry of outcomes-the pain of losses far exceeds the pleasure of gains. Research shows we're roughly twice as sensitive to losses as to gains, which explains why a $100 loss feels about twice as bad as a $100 gain feels good. This loss aversion is hardwired into our System 1 thinking as an evolutionary survival mechanism. The relationship between risk and reward is widely misunderstood. While conventional wisdom suggests taking more risk yields higher rewards, the truth is more nuanced. Taking risk is necessary for progress, but increased risk primarily widens the range of possible outcomes rather than guaranteeing better results. This creates an expanding cone of possibilities-both positive and negative-as risk increases. The path to wealth begins not with being more right than others but with being less wrong. We must balance taking enough risk to progress while mitigating inevitable mistakes. As Howard Marks notes, the goal isn't "risk avoidance" but "risk control"-taking sufficient but not excessive risk. The second priority in our wealth triangle focuses on aligning our assets with our goals. The foundation of planning begins with a simple personal balance sheet: listing what you own versus what you owe to determine your net worth. Effective financial planning requires matching specific assets to specific goals. We have two types: Terminal Goals (like a house down payment) requiring lump sums at specific future points, and Flow Goals (like retirement) requiring ongoing income streams. The key insight is timing-goals nearer in time should be funded with less risky assets. Even when we diligently plan, we face a fundamental challenge: our future selves may want different things than our present selves. Research studying 19,000 people found we easily acknowledge past changes in our personalities and values but struggle to imagine future changes. Having protected yourself from catastrophe and matched your assets with obligations, you've reached the pinnacle of the financial triangle. At this stage, you've won the money game! Different people reach this stage with varying bank account sizes-the key is calibration between your scorecard and desired lifestyle. A critical ingredient in growing and maintaining wealth is expressing gratitude. Positive psychology research shows giving thanks and being generous are deep sources of happiness.

第8章

Making Investment Decisions: Behavior, Portfolios, Parts

Money life combines earning, spending, saving, and investing. We build lives through earning power, spend on needs and wants, save responsibly, and invest to achieve bigger aspirations. Three factors drive good investment outcomes: your behavior, your overall portfolio, and your individual investment choices-a triangle that flips conventional wisdom by placing the least visible factor (behavior) as most important. The investor's primary problem isn't figuring out the market but figuring out himself. Success comes from controlling yourself, not beating others. Psychology trumps finance in achieving long-term objectives. Our brains are hardwired for cognitive and emotional errors, but this doesn't make us irrational-just normal humans. Even Daniel Kahneman, who co-invented behavioral finance, admits that merely knowing about these errors doesn't prevent us from committing them. The most powerful data point in investing is that we systematically buy high and sell low-the exact opposite of what common sense dictates. Over 20 years through 2015, the U.S. stock market gained 483%, but the average investor in U.S. stock mutual funds gained just 251%. This "behavior gap" exists because our evolutionary survival instincts compel us to run from danger and chase opportunity. When markets rise, dopamine makes us invest more; when markets fall, fear drives us to exit. Sometimes the best investment decision is removing discretion entirely. Comparing identical Vanguard 500 Index Funds reveals striking differences: the autopilot version (VINIX) held in retirement accounts saw investors earning 7.7% annually, while the discretionary version (VFINX) investors earned just 4.3%. On a $100,000 investment over ten years, autopilot investors ended with $260,087 versus discretionary investors' $160,630-a 62% difference. When making investment decisions, the primary asset classes to consider are stocks, fixed income, real estate, commodities, currencies, and cash-with stocks, bonds, and cash being the most practical "biggies." Research has conclusively shown that asset allocation is far more important than security selection or market timing. Studies found that about 90-94% of performance differences among investors can be explained by asset allocation choices. While asset allocation is crucial, precision isn't necessary for most investors. Even Harry Markowitz, the Nobel laureate father of modern portfolio theory, couldn't apply his own landmark theory to his personal finances. Instead, he simply split his contributions "50-50 between stocks and bonds" based on visualizing his potential regret in different market scenarios.

『ジオメトリー・オブ・ウェルス ―― 幸せのための「お金」の設計図』をもっと深く楽しむ

毎日の新しい気づきを10万件以上のレッスンから
言葉をハイライトして音声と同期
ライブラリを保存して、どの端末からでも利用

第9章

The Power of Simplicity: Breaking Through Financial Complexity

Dr. Ignaz Semmelweis discovered that doctors' unwashed hands were causing deadly childbed fever in new mothers. His solution was deceptively simple: wash your hands. This revolutionary idea dropped mortality rates from 1 in 6 to 1 in 100, yet was initially resisted despite its effectiveness. Simple is hard because humans naturally crave complexity-we equate more choices with greater control and safety. We find complexity more interesting and variety more appealing, which explains why complexity sells in everything from retail stores to financial products. While basic investment principles (buy low/sell high, diversify, stick to your plan) are straightforward, we're drawn to complex solutions. Achieving simplicity requires fighting against entropy and disorder, especially in the jargon-filled world of investing where the stakes are high. Our brains constantly categorize everything we encounter, yet we rarely notice this fundamental process. Categories define our reality but remain largely invisible-like water to fish. In investing, categories create a linguistic minefield: stocks, bonds, growth, value, and countless overlapping descriptors that create confusion. To achieve clarity, we must persistently ask "What is this?" until we reach a meaningful answer that focuses on function over attributes-what an investment does matters more than what it is. We're not wired to think in probabilities, yet investing demands statistical reasoning. Humans crave certainty-our ancestors didn't calculate tiger attack probabilities, they just fled. This discomfort with uncertainty makes us see patterns where none exist and leads to poor investment decisions. For investors, this means recognizing that randomness and luck dominate market outcomes more than skill, thinking in ranges rather than precise estimates, avoiding lottery-like investments with remote chances of huge payoffs, and embracing humility. Despite its mathematical veneer, investing isn't an engineering problem with precise solutions. This is actually good news-it means that with modest preparation, achieving decent outcomes is more accessible than many believe. Charlie Munger's approach captures this perfectly: "We tend to buy things where we don't know exactly what will happen, but the outcome will be decent." Embracing uncertainty and maintaining humility-the willingness to say "I don't know"-characterizes the world's greatest investors.

第10章

Managing Expectations: The Four Corners of Investment Success

Investment success hinges on managing expectations. When future outcomes meet or exceed our expectations, we tend to be happy; when they don't, we're not. The square framework simplifies investment decisions by focusing on four essential elements: returns (growth), volatility, correlation, and liquidity. Growth is the primary "product" we buy from investment companies-turning something smaller into something bigger. Understanding reasonable gain expectations is crucial for setting proper expectations. While conventional wisdom suggests stocks return "about 10% per year," this average is misleading because it ignores the wide range of actual outcomes. Analysis shows that longer investment timeframes produce narrower outcome ranges, making expectations easier to set. Over one-year periods, stock returns can vary dramatically (from +166% to -67%), while ten-year rolling returns typically fall between 0% and 20%. A fascinating investing conundrum exists: while the overall stock market delivers attractive long-term gains, most individual stocks don't outperform cash. Research shows 58% of common stocks have lifetime returns less than Treasury bills. The market's overall gains come from a tiny minority of exceptional performers-just 4% of companies explain the entire U.S. stock market's net gain over 90 years, with the top 86 stocks (out of 26,000) accounting for 50% of wealth creation. Unlike most possessions, investment prices change constantly, creating one of money life's most challenging problems: how to emotionally handle price volatility independent of underlying value changes. This volatility represents the emotional cost of achieving growth and often triggers poor decision-making as investors buy high and sell low. While long-term growth charts show remarkable appreciation, they don't capture how difficult it is to hold investments during rough periods. Like other consumption habits, we're drawn to investing styles that feel comfortable-whether "aggressive" or "conservative," familiar sectors, or companies in our own country (home bias). Correlation-how investments move in relation to each other-is crucial for portfolio construction. A smartly-assembled collection of lower-correlated assets can provide better returns with less volatility. The reality of true diversification is emotionally unpleasant-something in your portfolio will always be underperforming when other parts are doing well. The fourth element of investing is liquidity-the ease of buying or selling something. For normal people, liquidity represents flexibility and the ability to change one's mind. While we value control and freedom from constraint, there's a crucial balancing act between flexibility and discipline. Evidence shows that less flexibility often produces better outcomes-investors with "set it and forget it" retirement accounts typically outperform those who can easily tinker with their investments. The empty space at the center of the square represents the most critical yet counterintuitive investment strategy: doing nothing. After establishing a reasonable plan, we must resist the urge to tinker and instead let compounding work its magic. The ability to delay gratification-demonstrated in Mischel's famous "marshmallow test"-correlates strongly with better life outcomes. In our age of endless distraction, mastering the art of "doing nothing deliberately" may be investing's greatest skill.

聴きながら、すべての言葉を目で追えます

第11章

Finding Balance: Between More and Enough

As we conclude our journey through The Geometry of Wealth, we confront the fundamental tension between wanting more versus having enough. This tension represents the core struggle in our money lives. While Gordon Gekko from Wall Street embodied the extreme pursuit of "more" as a zero-sum game, most people are more like Bud Fox-torn between ambition and appreciating what they already have. Our fundamental money dilemma involves choosing whether "to float with the tide, or to swim for a goal" (quoting Hunter S. Thompson). We harbor dual urges: to appreciate the present moment and to push toward the next achievement. Finding balance between more and enough-between progress and presence, swimming and floating-forms the core challenge of enjoying a wealthy life. Our struggle with money ultimately involves time travel between our current and future selves. Unlike other animals, humans possess remarkable mental time travel abilities, making us not just Homo sapiens but Homo prospectus. This facility enables planning and social cooperation but creates tension between finance's linear conception of time (where days and years are uniform units) and psychology's elastic experience of time (where moments expand and contract subjectively). The ability to mentally time travel has mixed consequences for contentment. In the present, impulse is our enemy-we struggle with self-control and patience, especially with money where feedback is delayed. We discount the future hyperbolically, valuing tiny immediate rewards over larger future ones, making us poor at predicting what will make us happy later. Looking toward the future can undermine wealth when we fixate on "I'll be happy when..." scenarios, creating a hedonic treadmill. However, the future also holds potential for self-realization and progress. Research shows we feel pleasure in making progress toward goals, not just achieving them. Pursuing both presence and progress creates tension-like trying to tread water and swim forward simultaneously. This deep ontological tension between being and becoming requires finding our own rhythm. As Daniel Gilbert observed, "Human beings are works in progress that mistakenly think they're finished." The common question "Am I going to be okay?" can be inverted to focus on understanding the "I" rather than the "okay," connecting our present and future selves. True wealth is funded contentment. Anyone with the right mindset and the right plan can afford a meaningful life. The Geometry of Wealth shows three steps: adaptation, prioritization, and simplification-defining purpose, employing strategy, and focusing on the right decisions. Three shapes-circle, triangle, and square-simplify these steps, creating a path that anyone can follow to achieve not just financial success, but a life of genuine meaning and fulfillment.

★★★★★

『ジオメトリー・オブ・ウェルス ―― 幸せのための「お金」の設計図』を最後まで読み終えました

100万人以上の学習者に愛用されています

“23日間、毎日使い続けています。今では日課の一部です。”

jayallen

『ジオメトリー・オブ・ウェルス ―― 幸せのための「お金」の設計図』の主要テーマ

funded contentment
adaptive simplicity
behavioral finance
purposeful investing
financial decision making

『ジオメトリー・オブ・ウェルス ―― 幸せのための「お金」の設計図』の名言

Money isn't about being rich but about 'funded contentment.'
Met expectations lead to happiness, while unmet ones create sadness.
Money acts as the oil in life's engine.
Resilience is where great things are born.
Happiness depends on external circumstances, joy is something deeper.

『ジオメトリー・オブ・ウェルス ―― 幸せのための「お金」の設計図』の登場人物

Brian PortnoyAuthor and creator of the geometric framework
Martin FordAuthor who compared GM and Google's profitability

著者について

ブライアン・ポートノイ（Brian Portnoy, CFA）は、ベストセラー『The Geometry of Wealth』の著者であり、行動ファイナンスとマネー心理学における第一人者です。

ヘッジファンドおよび投資信託業界で20年以上の経験を持つベテランであり、シカゴ大学で博士号を取得しています。彼は、個人や組織が人間中心の金銭的決定を下せるよう支援するファイナンシャル・ウェルネス・プラットフォーム「Shaping Wealth」を設立しました。

彼の活動はポートフォリオ戦略と人生哲学を橋渡しするものであり、富がいかに目的や幸福と交差するかを探求しています。これらのテーマは、高く評価されている著書『The Investor’s Paradox』や、ジョシュア・ブラウンとの共編著『How I Invest My Money』でも詳しく掘り下げられています。

基調講演者としても引く手あまたのポートノイは、Alliance for Decision Educationの諮問委員を務めており、グローバル企業全体で金融リテラシー向上の取り組みを形作ってきました。『The Geometry of Wealth』は14カ国語に翻訳され、パーソナルファイナンス文学における現代の古典としての地位を確立しています。

ジオメトリー・オブ・ウェルス ―― 幸せのための「お金」の設計図の要約をダウンロード

ジオメトリー・オブ・ウェルス ―― 幸せのための「お金」の設計図の要約をPDFまたはEPUBで無料でダウンロード。印刷やオフラインでいつでもお読みいただけます。

他のユーザーのお気に入り

Wired for Wealth

Brad Klontz

Psychology of Wealth

Charles Richards

Algebra of Wealth

Scott Galloway

The Psychology of Wealth: Mind Over Money の書籍表紙

2 sources

The Psychology of Wealth: Mind Over Money

2 sources

The Psychology of Wealth: Mind Over Money

2 sources

The Psychology of Wealth: Mind Over Money

The Psychology of Money: Timeless lessons on wealth, greed, and happiness Paperback

Morgan Housel

The Laws of Wealth

Daniel Crosby

この本に関するよくある質問

学習プラン

Wealth with Peace: Naval, Burkeman & Manson

This curriculum bridges the gap between financial independence and mental tranquility by blending modern entrepreneurship with timeless philosophy. It is designed for ambitious professionals who want to achieve high-level success without sacrificing their sanity or sense of purpose.

4 h 7 m•5 セクション

学習プラン

The Boring Path to Wealth

This plan is essential for anyone overwhelmed by financial complexity who wants a reliable, low-stress strategy for growth. It is designed for individuals seeking to transition from reactive spending to proactive, automated wealth building.

1 h 30 m•3 セクション

学習プラン

The Wealth Architecture Operating System

This learning plan is designed for entrepreneurs trapped in the daily grind who want to transition from self-employment to true business ownership. It provides a strategic roadmap for anyone looking to bridge the gap between generating active income and building a sustainable wealth engine.

1 h 30 m•3 セクション

学習プラン

The Naval Ravikant Thinking Architecture

This plan is essential for professionals and entrepreneurs looking to escape the time-for-money trap. It offers a blueprint for building wealth through judgment and leverage while maintaining internal peace in a high-pressure world.

1 h 12 m•3 セクション

学習プラン

Financial Independence & 48 Laws of Power

This plan bridges the gap between wealth accumulation and the strategic influence required to protect and grow it. It is ideal for ambitious professionals and entrepreneurs who want to master both the mechanics of money and the psychology of power.

3 h 31 m•4 セクション

学習プラン

The Science of Financial Abundance

This plan is essential for individuals who feel stuck despite their efforts, as it bridges the gap between psychological rewiring and practical financial execution. It is ideal for professionals and entrepreneurs looking to remove mental barriers and apply a scientific approach to achieving wealth.

2 h 15 m•4 セクション

学習プラン

The Wealth Engine Strategy

This strategy is essential for entrepreneurs and business owners who want to transform their company into a high-value asset while securing personal financial independence. It bridges the gap between daily operations and long-term wealth creation through sophisticated capital management.

1 h 45 m•4 セクション

学習プラン

The Wealth Systems Architect

Traditional budgeting often fails because it ignores human psychology and system design. This plan is for professionals who want to stop micromanaging their money and instead build a resilient, automated wealth engine.

1 h 12 m•3 セクション

コロンビア大学卒業生がサンフランシスコで開発

LOVED BY

1,000,000+ curious minds.

4.7

avg rating

1M+ learners

"Instead of endless scrolling, I just hit play on BeFreed. It saves me so much time."

@Moemenn

"I never knew where to start with nonfiction—BeFreed’s book lists turned into podcasts gave me a clear path."

@Chloe, Solo founder, LA

117

"Perfect balance between learning and entertainment. Finished ‘Thinking, Fast and Slow’ on my commute this week."

@Raaaaaachelw

"Crazy how much I learned while walking the dog. BeFreed = small habits → big gains."

@Matt, YC alum

108

"Reading used to feel like a chore. Now it’s just part of my lifestyle."

@Erin, Investment Banking Associate , NYC

254

"Feels effortless compared to reading. I’ve finished 6 books this month already."

@djmikemoore

"BeFreed turned my guilty doomscrolling into something that feels productive and inspiring."

@Pitiful

4.5K

"BeFreed turned my commute into learning time. 20-min podcasts are perfect for finishing books I never had time for."

@SofiaP

"BeFreed replaced my podcast queue. Imagine Spotify for books — that’s it. 🙌"

@Jaded_Falcon

201

"It is great for me to learn something from the book without reading it."

@OojasSalunke

"The themed book list podcasts help me connect ideas across authors—like a guided audio journey."

@Leo, Law Student, UPenn

483

"Makes me feel smarter every time before going to work"

@Cashflowbubu

BeFreedがウェブ上でどのように話題になっているかをもっと見る

コロンビア大学卒業生がサンフランシスコで開発

LOVED BY

1,000,000+ curious minds.

4.7

avg rating

1M+ learners

"Instead of endless scrolling, I just hit play on BeFreed. It saves me so much time."

@Moemenn

"I never knew where to start with nonfiction—BeFreed’s book lists turned into podcasts gave me a clear path."

@Chloe, Solo founder, LA

117

"Perfect balance between learning and entertainment. Finished ‘Thinking, Fast and Slow’ on my commute this week."

@Raaaaaachelw

"Crazy how much I learned while walking the dog. BeFreed = small habits → big gains."

@Matt, YC alum

108

"Reading used to feel like a chore. Now it’s just part of my lifestyle."

@Erin, Investment Banking Associate , NYC

254

"Feels effortless compared to reading. I’ve finished 6 books this month already."

@djmikemoore

"BeFreed turned my guilty doomscrolling into something that feels productive and inspiring."

@Pitiful

4.5K

"BeFreed turned my commute into learning time. 20-min podcasts are perfect for finishing books I never had time for."

@SofiaP

"BeFreed replaced my podcast queue. Imagine Spotify for books — that’s it. 🙌"

@Jaded_Falcon

201

"It is great for me to learn something from the book without reading it."

@OojasSalunke

"The themed book list podcasts help me connect ideas across authors—like a guided audio journey."

@Leo, Law Student, UPenn

483

"Makes me feel smarter every time before going to work"

@Cashflowbubu

"Instead of endless scrolling, I just hit play on BeFreed. It saves me so much time."

@Moemenn

"I never knew where to start with nonfiction—BeFreed’s book lists turned into podcasts gave me a clear path."

@Chloe, Solo founder, LA

117

"Perfect balance between learning and entertainment. Finished ‘Thinking, Fast and Slow’ on my commute this week."

@Raaaaaachelw

"Crazy how much I learned while walking the dog. BeFreed = small habits → big gains."

@Matt, YC alum

108

"Reading used to feel like a chore. Now it’s just part of my lifestyle."

@Erin, Investment Banking Associate , NYC

254

"Feels effortless compared to reading. I’ve finished 6 books this month already."

@djmikemoore

"BeFreed turned my guilty doomscrolling into something that feels productive and inspiring."

@Pitiful

4.5K

"BeFreed turned my commute into learning time. 20-min podcasts are perfect for finishing books I never had time for."

@SofiaP

"BeFreed replaced my podcast queue. Imagine Spotify for books — that’s it. 🙌"

@Jaded_Falcon

201

"It is great for me to learn something from the book without reading it."

@OojasSalunke

"The themed book list podcasts help me connect ideas across authors—like a guided audio journey."

@Leo, Law Student, UPenn

483

"Makes me feel smarter every time before going to work"

@Cashflowbubu

"Instead of endless scrolling, I just hit play on BeFreed. It saves me so much time."

@Moemenn

"I never knew where to start with nonfiction—BeFreed’s book lists turned into podcasts gave me a clear path."

@Chloe, Solo founder, LA

117

"Perfect balance between learning and entertainment. Finished ‘Thinking, Fast and Slow’ on my commute this week."

@Raaaaaachelw

"Crazy how much I learned while walking the dog. BeFreed = small habits → big gains."

@Matt, YC alum

108

"Reading used to feel like a chore. Now it’s just part of my lifestyle."

@Erin, Investment Banking Associate , NYC

254

"Feels effortless compared to reading. I’ve finished 6 books this month already."

@djmikemoore

"BeFreed turned my guilty doomscrolling into something that feels productive and inspiring."

@Pitiful

4.5K

"BeFreed turned my commute into learning time. 20-min podcasts are perfect for finishing books I never had time for."

@SofiaP

"BeFreed replaced my podcast queue. Imagine Spotify for books — that’s it. 🙌"

@Jaded_Falcon

201

"It is great for me to learn something from the book without reading it."

@OojasSalunke

"The themed book list podcasts help me connect ideas across authors—like a guided audio journey."

@Leo, Law Student, UPenn

483

"Makes me feel smarter every time before going to work"

@Cashflowbubu

BeFreedがウェブ上でどのように話題になっているかをもっと見る

今すぐ学習の旅を始めよう

第10章

ジオメトリー・オブ・ウェルス ―― 幸せのための「お金」の設計図

概要『ジオメトリー・オブ・ウェルス ―― 幸せのための「お金」の設計図』の概要

1冊の本。さまざまな聴き方。

The Pursuit of Wealth Beyond Money: A Geometric Journey

The Geometry of Life: Three Shapes to Guide Your Journey

聴きながら、すべての言葉を目で追えます

The Modern Financial Dilemma: Alone Together

Adaptive Simplicity: The Engine of Wealth

『ジオメトリー・オブ・ウェルス ―― 幸せのための「お金」の設計図』をもっと深く楽しむ

The Four C's: What Really Matters for Happiness

The Money-Happiness Connection: Yes, Not Really, It Depends

聴きながら、すべての言葉を目で追えます

The Triangle of Wealth: Setting Priorities

Making Investment Decisions: Behavior, Portfolios, Parts

『ジオメトリー・オブ・ウェルス ―― 幸せのための「お金」の設計図』をもっと深く楽しむ

The Power of Simplicity: Breaking Through Financial Complexity

Managing Expectations: The Four Corners of Investment Success

聴きながら、すべての言葉を目で追えます

Finding Balance: Between More and Enough

『ジオメトリー・オブ・ウェルス ―― 幸せのための「お金」の設計図』を最後まで読み終えました

『ジオメトリー・オブ・ウェルス ―― 幸せのための「お金」の設計図』の主要テーマ

『ジオメトリー・オブ・ウェルス ―― 幸せのための「お金」の設計図』の名言

『ジオメトリー・オブ・ウェルス ―― 幸せのための「お金」の設計図』の登場人物

著者について

ジオメトリー・オブ・ウェルス ―― 幸せのための「お金」の設計図の要約をダウンロード

他のユーザーのお気に入り

この本に関するよくある質問

What is The Geometry of Wealth about?

Who should read The Geometry of Wealth?

Is The Geometry of Wealth worth reading?

Who is Brian Portnoy?

もっと見る

1,000,000+ curious minds.

1,000,000+ curious minds.

1冊の本。さまざまな聴き方。

The Pursuit of Wealth Beyond Money: A Geometric Journey

The Geometry of Life: Three Shapes to Guide Your Journey

聴きながら、すべての言葉を目で追えます

The Modern Financial Dilemma: Alone Together

Adaptive Simplicity: The Engine of Wealth

『ジオメトリー・オブ・ウェルス ―― 幸せのための「お金」の設計図』をもっと深く楽しむ

The Four C's: What Really Matters for Happiness

The Money-Happiness Connection: Yes, Not Really, It Depends

聴きながら、すべての言葉を目で追えます

The Triangle of Wealth: Setting Priorities

Making Investment Decisions: Behavior, Portfolios, Parts

『ジオメトリー・オブ・ウェルス ―― 幸せのための「お金」の設計図』をもっと深く楽しむ

The Power of Simplicity: Breaking Through Financial Complexity

Managing Expectations: The Four Corners of Investment Success

聴きながら、すべての言葉を目で追えます

Finding Balance: Between More and Enough

『ジオメトリー・オブ・ウェルス ―― 幸せのための「お金」の設計図』を最後まで読み終えました

他のユーザーのお気に入り

もっと見る

『ジオメトリー・オブ・ウェルス ―― 幸せのための「お金」の設計図』の概要