“Evolution has no moral direction. An evolutionary understanding of human nature can explain the differing intuitions we have when we are faced with an individual rather than with a mass of people, or with people close to us rather than with those far away, but it does not justify those feelings.”

Australian philosopher and bioethicist, Singer is best known for his utilitarian approach to ethics and his influential work on animal rights and effective altruism. His writings challenge conventional moral frameworks, advocating for compassionate decision-making across human and nonhuman animals.