Which C.S. Lewis book argues against reducing education to changing moral sentiments?

The Abolition of Man argues against reducing education to the manipulation of moral sentiments. C.S. Lewis published the book in 1943 after delivering the Riddell Memorial Lectures at the University of Durham.

The book responds to a contemporary English textbook that Lewis called The Green Book. He objects to teaching students that value judgments are merely subjective emotional reactions. Lewis argues instead for an objective moral order, which he calls the Tao.

The three chapters are titled Men Without Chests, The Way, and The Abolition of Man. Lewis maintains that a society attempting to conquer nature through technology may ultimately place human beings under the control of other humans.

The work is philosophical and educational rather than a novel. Its argument is sometimes confused with That Hideous Strength, the third novel in Lewis’s Space Trilogy, which dramatizes related concerns about technocracy and attempts to remake humanity.