Ethics & Moral Philosophy

Ethical Relativity

The Essence of Hume's Philosophy

Of Consolation to Helvia

The Meaning of Good—A Dialogue

Is the Morality of Jesus Sound

Reflections; or Sentences and Moral Maxims

The Sin and Danger of Self-Love

The Inevitable Crimes of Celibacy

On Old Age – Cicero de Senectute

Philosophy of the Plan of Salvation: A Book for the Times

The Ethics of Diet

The Analogy of Religion to the Constitution and Course of Nature

Of Consolation: To Marcia

The Essays of Arthur Schopenhauer; the Art of Controversy

Considerations on Representative Government

The Philosophy of Evolution

The Ghosts, and Other Lectures

Aristotle

On the Firmness of the Wise Man

Of Clemency