A Pluralistic Universe / Hibbert Lectures at Manchester College on the Present Situation in Philosophy

The Psychology of Revolution

Logic / Deductive and Inductive

Optimism / An Essay

Five Stages of Greek Religion

Three Philosophical Poets / Lucretius, Dante, and Goethe

The History of the Decline and Fall of the Roman Empire

Christianity and Greek Philosophy / or, the relation between spontaneous and reflective thought / in Greece and the positive teaching of Christ and His / Apostles

Dialogues Concerning Natural Religion

The Practice and Theory of Bolshevism

A History of Indian Philosophy, Volume 1