• A Hermit of Carmel, and Other Poems
• Character and Opinion in the United States: With Reminiscences of William James and Josiah Royce and Academic Life in America
• Egotism in German Philosophy
• Interpretations of Poetry and Religion
• Poems
• Soliloquies in England, and Later Soliloquies
• Some Turns of Thought in Modern Philosophy: Five Essays
• The Life of Reason: The Phases of Human Progress
• The Sense of Beauty: Being the Outlines of Aesthetic Theory
• Three Philosophical Poets: Lucretius, Dante, and Goethe
• Winds Of Doctrine: Studies in Contemporary Opinion