In October, I had the honor of participating in a public discussion at Princeton University with philosopher Peter Singer, Professor of Ethics and author of The Most Good You Can Do: How Effective Altruism is Changing Ideas About Living Ethically…

In line with Darwin’s emphasis on the importance of cooperation in nature, new advances in evolutionary theory allow us to envision an extended altruism that transcends the ties of family and tribe, and emphasizes the fact that human beings are …