Is the life of a newborn baby equivalent to the life of a person?

Ideas & Philosophy · Published 29 September 2026 Swipe more like this →

In short: Peter Singer, one of the world's most influential living philosophers, argues that personhood requires rationality, autonomy, and self-consciousness. By this definition, he suggests that newborns lack the characteristics that make killing a person wrong. His controversial utilitarian framework challenges our deepest moral intuitions about life, death, and global responsibility.

Born in Melbourne in 1946 to parents who fled Nazi-occupied Austria, Peter Singer has spent his career applying a secular, utilitarian framework to the most difficult questions of existence. A former professor at Princeton, Singer argues that ethics requires an impartial, universal perspective. He contends that the fundamental criterion for moral consideration is sentience—the capacity to suffer or experience happiness—rather than species membership. This stance led to his landmark 1975 book, Animal Liberation, which popularized the term 'speciesism' and argued that the boundary between humans and other animals is arbitrary.

Singer's utilitarianism demands that we maximize the interests of all affected beings. This has profound implications for global poverty. In his 1972 essay 'Famine, Affluence, and Morality,' he introduced the 'drowning child analogy,' arguing that citizens of wealthy nations have a moral obligation to donate significant portions of their income to save lives. This philosophy helped catalyze the effective altruism movement, which seeks to apply rigorous, evidence-based reasoning to charity. Singer himself founded The Life You Can Save, an organization that directs donors toward the most cost-effective interventions for those in extreme poverty.

His work often courts controversy, particularly regarding the sanctity of life. Singer argues that the right to life is tied to a being's capacity to hold preferences. Because he believes newborns lack the essential traits of personhood, he has argued that killing an infant is not equivalent to killing a person who desires to continue living. While he accepts that human life begins at conception or shortly thereafter, he rejects the idea that biological humanity alone grants a being a right to life. Instead, he urges society to focus on the specific capacities that make killing morally wrong, a position that continues to spark intense debate among ethicists and the public alike.

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