Peter Singer author photo
Image via Wikimedia Commons, licensed under CC BY 2.0.

Peter Singer

Born: July 06, 1946 – Melbourne, Victoria, Australia

Peter Singer is an Australian moral philosopher renowned for his pioneering work in applied ethics, particularly in animal rights, bioethics, and effective altruism. His book Animal Liberation (1975) catalyzed the modern animal rights movement, and works like Practical Ethics and The Life You Can Save have significantly shaped contemporary debates about global poverty and moral responsibility.

Biography & Author's Journey

Peter Singer, born in 1946 in Melbourne to Austrian Jewish parents who escaped the Nazi annexation of Austria, grew up under the shadow of his family’s traumatic losses during the Holocaust. His early education took place at Scotch College in Melbourne, after which he attended the University of Melbourne, earning degrees in philosophy and history. He went on to pursue postgraduate studies at Oxford, where his intellectual development took a decisive turn when he encountered new arguments for vegetarianism and embraced it himself. While at Oxford, he completed a B.Phil. and began developing his lifelong commitment to practical ethics—a philosophical approach advocating for moral reasoning grounded in real-world issues over abstract theory.

Show More

Quotes

quote
All the arguments to prove man's superiority cannot shatter this hard fact: in suffering the animals are our equals
-Animal Liberation
quote
If possessing a higher degree of intelligence does not entitle one human to use another for his or her own ends, how can it entitle humans to exploit non-humans?
-Animal Liberation
quote
We are, quite literally, gambling with the future of our planet—for the sake of hamburgers
-Animal Liberation
quote
Philosophy ought to question the basic assumptions of the age. Thinking through, critically and carefully, what most of us take for granted is, I believe, the chief task of philosophy, and the task that makes philosophy a worthwhile activity
-Practical Ethics
quote
Extreme poverty is not only a condition of unsatisfied material needs. It is often accompanied by a degrading state of powerlessness
-The Life You Can Save
quote
We should give equal consideration to the interests of all beings, all beings have interests, all can feel pain, irrespective of their species
-Animal Liberation
quote
We are responsible not only for what we do but also for what we could have prevented
-Writings on an Ethical Life
quote
Speciesism is an attitude of prejudice towards beings because they're not members of our species, so just as racism means that you're prejudiced against beings who are not members of your race and sexism means you're prejudiced against people of the other sex. So we humans tend to be speciesist in we think that any being that is a member of the species homo sapien just automatically has a higher moral status and is more important than any being that is a member of any other species, irrespective of the actual characteristics of those beings
-Interview on speciesism
quote
If you're lucky enough to live without want, it's a natural impulse to want to try and help others. But what's the most effective way to give?
-TED Talk: The Why and How of Effective Altruism
quote
The fact that they're not right in front of us, the fact, of course, that they're of a different nationality or race, none of that seems morally relevant to me
-TED Talk: The Why and How of Effective Altruism

Discover more

Grasp meat ethics dissonance
LEARNING PLAN

Grasp meat ethics dissonance

This learning plan addresses the psychological and ethical tensions many people face around meat consumption. It's designed for anyone curious about food ethics, sustainability advocates, philosophy enthusiasts, or individuals seeking to align their dietary choices with their values through evidence-based reasoning.

4 h 40 m5 Sections
Learn Philanthropic Cost-Benefit Analysis
LEARNING PLAN

Learn Philanthropic Cost-Benefit Analysis

This learning plan is essential for donors, non-profit leaders, and social investors who want to move beyond intuition toward data-driven decision-making. It provides the analytical tools necessary to evaluate social returns and navigate the ethical complexities of modern elite philanthropy.

5 h 32 m4 Sections
The Vocation of Being Human
LEARNING PLAN

The Vocation of Being Human

In an era of career burnout, this plan bridges the gap between technical labor and moral purpose. It is designed for professionals and leaders seeking to integrate ethical responsibility and virtue ethics into their long-term career strategy.

3 h4 Sections
Master philosophy & ethics
LEARNING PLAN

Master philosophy & ethics

Philosophy provides essential tools for examining life's biggest questions and making reasoned decisions in an increasingly complex world. This learning plan is ideal for anyone seeking to think more critically, understand diverse perspectives, live more intentionally, or explore the foundational ideas that underpin science, politics, ethics, and culture.

5 h 51 m4 Sections
Ethics and technology
LEARNING PLAN

Ethics and technology

As technology increasingly shapes every aspect of our lives—from AI decision-making to data surveillance—understanding its ethical implications has become essential for informed citizenship and professional responsibility. This learning plan is valuable for technologists, policymakers, business leaders, and engaged citizens who want to think critically about technology's societal impact and contribute to building a future where innovation serves human flourishing rather than undermining it.

5 h 16 m4 Sections
History of Human Belief & Betterment Efforts
LEARNING PLAN

History of Human Belief & Betterment Efforts

This plan tracks the intersection of human spirituality, ethics, and activism to provide a roadmap for meaningful global impact. It is ideal for aspiring leaders, advocates, and lifelong learners seeking to understand how historical values drive modern progress.

6 h 1 m4 Sections
Study existentialism basics
LEARNING PLAN

Study existentialism basics

Existentialism remains one of philosophy's most relevant schools of thought, offering profound insights into human freedom, responsibility, and meaning-making in an uncertain world. This learning plan is ideal for philosophy students, thoughtful individuals seeking deeper self-understanding, and anyone grappling with questions about purpose, authenticity, and how to live meaningfully in modern life.

4 h 45 m4 Sections
Philosophy tomas aquinas
LEARNING PLAN

Philosophy tomas aquinas

Thomas Aquinas remains a cornerstone of Western thought, bridging the gap between classical reason and spiritual faith. This plan is ideal for students of philosophy, theology, or ethics seeking a rigorous foundation in systematic thinking and moral law.

5 h 10 m4 Sections

Community Voices

"Peter Singer is often described as the world’s most influential philosopher and one of its most controversial"

Goodreads

"Singer is the most famous and influential contemporary utilitarian philosopher"

Utilitarianism.net

"Peter Singer popularised the term 'speciesism' and argues for the equal consideration of human and non-human animal interests"

Wikipedia

"Peter Singer has been the leading advocate of animal rights from a rigorously argued and philosophically defined ethical perspective"

EBSCO

"Peter Singer is world famous for giving the impetus to the animal rights movement"

EGS – Division of Philosophy, Art, and Critical Thought

"Singer helped launch the animal rights and effective altruism movements and contributed to the development of bioethics"

Goodreads

"Peter Singer is an Australian ethical and political philosopher best known for his work in bioethics and his advocacy of animal rights"

Britannica

"Peter Singer made groundbreaking contributions to animal welfare, bioethics, and effective altruism"

IAI TV

"In 2009, Peter Singer was named to Time magazine’s list of 'The 100 Most Influential People in the World."

EGS – Division of Philosophy, Art, and Critical Thought

FAQs about this page

From Columbia University alumni built in San Francisco

BeFreed Brings Together A Global Community Of 1,000,000 Curious Minds

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

@Moemenn
platform
star
star
star
star
star

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

@Chloe, Solo founder, LA
platform
comments
12
likes
117

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

@Raaaaaachelw
platform
star
star
star
star
star

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

@Matt, YC alum
platform
comments
12
likes
108

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

@Erin, Investment Banking Associate , NYC
platform
comments
254
likes
17

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

@djmikemoore
platform
star
star
star
star
star

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

@Pitiful
platform
comments
96
likes
4.5K

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

@SofiaP
platform
star
star
star
star
star

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

@Jaded_Falcon
platform
comments
201
thumbsUp
16

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

@OojasSalunke
platform
star
star
star
star
star

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

@Leo, Law Student, UPenn
platform
comments
37
likes
483

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

@Cashflowbubu
platform
star
star
star
star
star

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

@Moemenn
platform
star
star
star
star
star

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

@Chloe, Solo founder, LA
platform
comments
12
likes
117

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

@Raaaaaachelw
platform
star
star
star
star
star

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

@Matt, YC alum
platform
comments
12
likes
108

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

@Erin, Investment Banking Associate , NYC
platform
comments
254
likes
17

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

@djmikemoore
platform
star
star
star
star
star

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

@Pitiful
platform
comments
96
likes
4.5K

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

@SofiaP
platform
star
star
star
star
star

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

@Jaded_Falcon
platform
comments
201
thumbsUp
16

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

@OojasSalunke
platform
star
star
star
star
star

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

@Leo, Law Student, UPenn
platform
comments
37
likes
483

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

@Cashflowbubu
platform
star
star
star
star
star

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

@Moemenn
platform
star
star
star
star
star

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

@Chloe, Solo founder, LA
platform
comments
12
likes
117

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

@Raaaaaachelw
platform
star
star
star
star
star

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

@Matt, YC alum
platform
comments
12
likes
108

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

@Erin, Investment Banking Associate , NYC
platform
comments
254
likes
17

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

@djmikemoore
platform
star
star
star
star
star

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

@Pitiful
platform
comments
96
likes
4.5K

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

@SofiaP
platform
star
star
star
star
star

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

@Jaded_Falcon
platform
comments
201
thumbsUp
16

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

@OojasSalunke
platform
star
star
star
star
star

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

@Leo, Law Student, UPenn
platform
comments
37
likes
483

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

@Cashflowbubu
platform
star
star
star
star
star
1.5K Ratings4.7
Start your learning journey, now