What was the title of C.S. Lewis’s 1943 book about the decline of Western thought?

The title of C.S. Lewis’s 1943 book about the decline of Western thought is The Abolition of Man. The work began as three lectures delivered at the University of Durham in February 1943.

Lewis criticized an approach to education that, in his view, treated value judgments as merely subjective emotions. He defended the existence of objective moral principles shared across cultures, a concept he called the Tao in the book.

The final chapter argues that attempts to conquer nature through technological control could ultimately reduce human freedom and agency. The Abolition of Man is not a novel and is not primarily a biography of Lewis. It is a short philosophical and educational critique, often read alongside his Christian apologetics.