What is the title of C.S. Lewis’s 1943 book about objective moral values?

C.S. Lewis’s 1943 book about objective moral values is The Abolition of Man.

The book grew from three lectures Lewis delivered at the University of Durham in February 1943. In them, he criticized approaches to education and ethics that treated moral judgments as merely subjective feelings. Lewis argued that human societies depend on shared moral principles, which he called the Tao.

The Abolition of Man is a relatively short work, but it has had influence beyond religious studies. Readers have discussed it in relation to education, moral philosophy, natural law, technology, and the limits of scientific power. Its final section considers what could happen if humanity tried to reshape human nature through technical control.

The title does not refer to humanity’s physical disappearance. Lewis meant the loss of specifically human moral agency and value if objective standards were rejected. That distinction is central to understanding the book’s argument.