Life does not become empty and meaningless in a godless universe. This is the contention at the heart of humanism, the philosophy concerned with making sense of the world through reason, experience and shared human values. In this thought-provoking introduction, Peter Cave explores the humanist approach to religious belief, ethics and politics, and addresses key criticisms. Revised and updated to confront today's great crises the climate emergency and global pandemics and the future of humanism in the face of rapid technological advancement, this is for anyone wishing to better understand what it means to be human in the twenty-first century.