Peter Singer

(b. 1946)

contemporaryEffective AltruismAustralian

Biography

Australian moral philosopher whose utilitarian arguments have reshaped thinking about animal rights, global poverty, and effective giving. His 'drowning child' thought experiment — if you'd save a drowning child at the cost of ruining your shoes, why not save distant children with equivalent donations? — became a catalyst for the effective altruism movement. Argues that purpose is found in alleviating the most suffering possible with the resources available to us.

Key contribution

Provided the philosophical foundation for effective altruism: moral purpose requires not just good intentions but evidence-based action to maximize positive impact.

Key works

  • The Life You Can Save
  • Animal Liberation
  • Practical Ethics

Perspectives on purpose

Maximizing Your Positive Impact

foundational

Purpose is found in using evidence and reason to do the most good possible with your life — career, resources, and time directed where they matter most.

If you can prevent something bad from happening without sacrificing anything of comparable moral importance, you ought to do it.

“If it is in our power to prevent something bad from happening, without thereby sacrificing anything of comparable moral importance, we ought, morally, to do it.”

— Famine, Affluence, and Morality
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