The Philosophy of the Moral Feelings

The Expression of the Emotions in Man and Animals

An Introduction to Philosophy

Voltaire's Philosophical Dictionary

The Will to Believe : and Other Essays in Popular Philosophy

A Discourse of a Method for the Well Guiding of Reason / and the Discovery of Truth in the Sciences

The World's Greatest Books — Volume 13 — Religion and Philosophy

The Works of Aristotle the Famous Philosopher / Containing his Complete Masterpiece and Family Physician; his Experienced Midwife, his Book of Problems and his Remarks on Physiognomy

The World's Greatest Books — Volume 14 — Philosophy and Economics

Talks To Teachers On Psychology; And To Students On Some Of Life's Ideals

Taboo and Genetics / A Study of the Biological, Sociological and Psychological Foundation of the Family