Which C.S. Lewis book argues that modern society could abolish humanity through misplaced science and education?

The Abolition of Man argues that modern society could abolish humanity through a loss of objective moral values.

C.S. Lewis based the book on three lectures delivered at the University of Durham in 1943. He published them in 1943 under the title The Abolition of Man, with the subtitle Reflections on Education with Special Reference to the Teaching of English in the Upper Forms of Schools.

Lewis criticized an approach to education that treated moral judgments as merely subjective emotional reactions. He defended what he called the Tao, a term he used for a cross-cultural body of basic moral principles. In his argument, technological power without moral formation could eventually allow people to reshape human nature while weakening the values that make humanity recognizable.

The book is not primarily a novel, a biography, or a general history of science. It is a compact work of moral and educational philosophy, and its warnings about technology continue to attract discussion.