Ethics in the Real World: An interview with philosopher Peter Singer

Peter Singer

Peter Singer, renowned philosopher and author of such influential books as Animal Liberation, Rethinking Life and Death, and The Life You Can Save, has taken the time to answer questions about his new collection of essays, Ethics in the Real World: 82 Brief Essays on Things that Matter. Applying moral philosophy to recent current events, Singer’s essays address thorny issues such as whether chimpanzees are people, whether smoking should be outlawed, and whether consensual sex between adult siblings should be decriminalized. Read on for Singer’s own thoughts on altruism, the influence of his work and its controversial nature.

You’ve written essays on climate change, extreme poverty, animal rights, abortion, and the ethics of high-priced art, to name just a few. Is there a certain topic that has attracted the most attention?

PS: From that list, the two issues on which my views have been most widely discussed are our treatment of animals, and what we ought to be doing about extreme poverty. These are also the issues on which my writings have had the biggest impact. In the case of animals, they have contributed to new laws that have improved the lives of billions of animals, and in the case of extreme poverty, my work has spurred the development of the effective altruism movement, which has caused hundreds of millions of dollars to flow to the non-profit organizations that are most effective in helping people in extreme poverty.

You address a wide range of ethical questions with arguments that challenge people’s deeply held beliefs. In your experience, do people change their beliefs based on others’ arguments?

PS: There is no doubt that some of them do. Almost every time I give a public lecture, people come up to me afterwards and tell me how reading my work led them to become vegan, or start donating a share of their income to organizations that are aiding people in need. I know someone who donated a kidney to a stranger as a result of a discussion of one of my articles in his class

Who is the audience for your new book, Ethics in the Real World?

PS: Socrates said that the unexamined life is not worth living. This book is for everyone who is willing to reflect on how he or she lives, and everyone who wants to be stimulated to think about how we ought to live.

You’ve been called both the most influential and the most controversial philosopher of our time. Why do you think your work stirs controversy?

PS: It can be controversial to question accepted moral views. To discuss whether it is more seriously wrong to kill a member of our own species than to kill an animal, you need to ask “What is wrong with killing?” Even if you conclude, as I do, that in most circumstances killing a human being is worse than killing an animal, some people object to raising the question at all. They don’t want their ethical views disturbed. And we all know what happened to Socrates.

What would you have been if not a philosopher?

PS: Probably a lawyer. I was planning to continue with law, because I enjoy a good argument, but I got a scholarship to do graduate work in philosophy, and found that in philosophy I could argue for what I really believe is right and true, and not just for what is in the interests of my client.

Peter Singer is the Ira W. DeCamp Professor of Bioethics in the University Center for Human Values at Princeton University and Laureate Professor at the University of Melbourne. He first became well known internationally in 1975 with the publication of Animal Liberation. His other books include How Are We to Live?, The Ethics of What We Eat (with Jim Mason), and The Most Good You Can Do. He divides his time between Princeton and Melbourne.