
In "Born Liars," Ian Leslie reveals our evolutionary need for deception - from nine-month-olds faking laughter to the placebo effect healing a soldier. This provocative exploration challenges conventional morality: could lying actually be essential for human survival?
Ian Leslie is a British author and behavioral psychology expert. He explores the complexities of human deception in his acclaimed book Born Liars: Why We Can't Live Without Deceit.
A former advertising strategist for global brands, Leslie brings a unique lens to psychology and communication. He has written for The Guardian, Financial Times, and New Statesman. His work bridges academic rigor and accessible storytelling, with follow-up bestsellers like Curious (2014) and Conflicted (2021) examining curiosity and productive disagreement in modern society.
Leslie hosts the Polarised podcast and shares insights through his popular newsletter The Ruffian, reaching thousands of subscribers. A Fellow of the Royal Society of Arts, he advises leaders on workplace culture while residing in London with his family. Born Liars has been cited widely in psychology discussions and adapted into educational resources for its groundbreaking analysis of deceit’s evolutionary role.
Born Liars explores deception as an innate human trait, arguing that lying is central to social and psychological development. Ian Leslie blends neuroscience, philosophy, and cultural history to examine how lies shape relationships, politics, and self-perception, while also addressing their darker consequences, like manipulation. The book reveals how deception evolved as an evolutionary advantage and why honesty remains a nuanced ideal.
This book is ideal for psychology enthusiasts, professionals in advertising or politics, and readers interested in human behavior. It appeals to those curious about the science of deception, ethical dilemmas in truth-telling, and how lying influences art, media, and personal relationships. Cultural anthropologists and armchair philosophers will also find its interdisciplinary approach compelling.
Yes. Ian Leslie’s engaging narrative combines rigorous research with anecdotes about historical figures like Benjamin Franklin and Bill Clinton. It offers fresh perspectives on why lying is inseparable from human progress, making it a thought-provoking read for understanding social dynamics and self-deception. Critics praise its balance of accessibility and depth.
The book ties lying to human brain development, citing how early humans used deceit to navigate complex social hierarchies. Leslie argues that our ancestors’ survival relied on manipulating others’ perceptions, which fostered cognitive growth. Neurochemical processes and adaptive behaviors, like children’s fibbing, further illustrate deception’s evolutionary roots.
Key ideas include:
Yes. Leslie critiques the polygraph’s reliability, noting its reliance on psychological intimidation rather than scientific accuracy. He references historical examples, like police using fake machines to extract confessions, and explains why humans are better at lying than detecting lies.
Leslie acknowledges “pro-social lies” that build trust, such as sparing others’ feelings or fostering intimacy. However, he warns against manipulation, like politicians misrepresenting facts or advertisers exploiting cognitive biases. The book emphasizes context: deception’s morality depends on intent and consequences.
Self-deception is framed as a survival mechanism, enabling individuals to cope with stress or maintain confidence. Leslie links it to placebo responses and career success, arguing that selectively ignoring harsh truths can motivate progress. However, chronic self-deception risks alienation or poor decision-making.
The book examines how leaders like Bill Clinton use strategic ambiguity to sway public opinion, while media outlets amplify sensationalized narratives. Leslie warns that institutionalized deceit erodes trust but acknowledges its inevitability in competitive systems like capitalism and democracy.
While not a guide, Leslie suggests cultivating awareness of deception’s ubiquity. He advises questioning motives behind persuasive messages (e.g., ads) and recognizing how self-deception shapes personal goals. The book emphasizes critical thinking over simplistic “truth vs. lies” frameworks.
Some readers might find Leslie’s acceptance of lying as inevitable overly cynical. The book also avoids prescriptive solutions for ethical dilemmas, focusing instead on observational analysis. However, its balanced exploration of deception’s dual nature is widely praised.
Unlike academic texts, Born Liars uses pop culture references (e.g., The Wire) and historical anecdotes to make complex ideas accessible. It complements works like Predictably Irrational but stands out for its interdisciplinary focus on lying’s societal and evolutionary roles.
Siente el libro a través de la voz del autor
Convierte el conocimiento en ideas atractivas y llenas de ejemplos
Captura ideas clave en un instante para un aprendizaje rápido
Disfruta el libro de una manera divertida y atractiva
Understanding deception is key to understanding humanity.
We became the undisputed masters of deception.
A child's first lie may actually be cause for celebration.
Creativity requires being calculatedly stupid.
Desglosa las ideas clave de Born Liars en puntos fáciles de entender para comprender cómo los equipos innovadores crean, colaboran y crecen.
Destila Born Liars en pistas de memoria rápidas que resaltan los principios clave de franqueza, trabajo en equipo y resiliencia creativa.

Experimenta Born Liars a través de narraciones vívidas que convierten las lecciones de innovación en momentos que recordarás y aplicarás.
Pregunta lo que quieras, elige la voz y co-crea ideas que realmente resuenen contigo.

Creado por exalumnos de la Universidad de Columbia en San Francisco
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Creado por exalumnos de la Universidad de Columbia en San Francisco

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Why do the most successful people often border on delusion about their abilities? How can sugar pills heal as effectively as medicine? Ian Leslie's "Born Liars" challenges our conventional wisdom about honesty, revealing that deception isn't merely a moral failing but a fundamental aspect of human evolution. Our capacity for deception-including self-deception-may be the very thing that makes us uniquely human. Contrary to our moral instincts, lying isn't simply wrong; it's woven into the fabric of our evolutionary history, child development, creativity, and even our health. This provocative exploration takes us through the surprising science of why we lie, how we lie, and the unexpected benefits that sometimes come from our deceptions-both to others and to ourselves.