The Most Good You Can Do

Peter Singer argues that ethics shouldn't stop at avoiding harm; it should extend to actively maximizing the good we do with the resources we control, guided by evidence rather than sentiment. He profiles people who have restructured their careers and finances around this idea, some giving away the majority of their income, choosing high-paying jobs specifically to donate more, or donating a kidney to a stranger. His argument is unapologetically utilitarian: since money goes much further fighting extreme poverty or preventable disease abroad than funding a museum wing or a local charity gala, choosing the museum over the mosquito nets is a moral failure, not a neutral preference.

This matters because most charitable giving is driven by emotional proximity and storytelling rather than by cost-effectiveness, meaning enormous amounts of well-intentioned money accomplish far less good than they could. Singer's case, building on his decades-old "drowning child" thought experiment, forces readers to confront why geographic or emotional distance should excuse us from helping strangers whose lives we could save cheaply. Critics note the discomfort this creates around loyalty, local ties, and the arts, and Singer engages that tension directly rather than dodging it.

Who should read it

Anyone who donates to charity, is choosing a career, or wants a rigorous framework for thinking about obligation to distant strangers will find this clarifying, if occasionally uncomfortable. It's especially useful for those drawn to the effective altruism movement or skeptical of it.

About the author

Peter Singer is an Australian moral philosopher and professor of bioethics at Princeton University, widely known for his influential work on ethics, animal welfare, and global poverty since the 1970s.