What was the title of C.S. Lewis’s 1943 book about moral law and modern education?

C.S. Lewis’s 1943 book about moral law and modern education was The Abolition of Man.

The Abolition of Man developed from three lectures Lewis delivered at the University of Durham in February 1943. The book examines moral education, objective value, and the danger of treating moral judgments as nothing more than subjective feelings. Lewis uses the term “the Tao” for a cross-cultural set of basic moral principles that he argues human societies have repeatedly recognized.

The work is partly a response to approaches to education that, in Lewis’s view, reduced emotional formation and moral judgment to conditioning. Its final chapter discusses how attempts to control nature can ultimately turn into control of human beings.

The book is sometimes confused with Miracles, another work from the same broad period, or with The Discarded Image, Lewis’s later study of the medieval worldview. The Abolition of Man is specifically the short 1943 work built around the Durham lectures.