Originally a series of lectures, "The Abolition of Man" is C.S. Lewis's profound philosophical argument for the existence and necessity of objective moral values, which he calls the "Tao." Lewis critiques educational trends that promote moral subjectivism, where all values are seen as mere feelings, leading to a society of "men without chests" disconnected from both reason and emotion. He warns of a future where human nature itself is abolished through the denial of universal truths and the manipulation of human instincts. This book is a crucial text for parents and educators interested in the philosophical underpinnings of ethics, the purpose of education, and the long-term societal consequences of moral relativism. It's a challenging but deeply rewarding read for mature teens and adults.