Metaphysics

A Pluralistic Universe

Phaedo

Facts of Consciousness

The Meaning of Evolution

History of Modern Philosophy

Life: Its True Genesis

The Metaphysical Elements of Ethics

Gospel Philosophy

Old-Fashioned Ethics and Common-Sense Metaphysics

London Lectures of 1907

The Buried Temple

Thoughts on Life and Religion

The Philosophy of Evolution

The Philosophy of Evolution

Reincarnation: A Study in Human Evolution

Proslogion

The Improvement of Human Reason

Absurdities of Immaterialism Or, A Reply to T. W. P. Taylder's Pamphlet, Entitled, “The Materialism of the Mormons or Latter-Day Saints, Examined and Exposed.”

Eureka: A Prose Poem

Philosophies