Sonnets and Other Verses (1894)

The Sense of Beauty (1896)

Lucifer: A Theological Tragedy (1899)

Interpretations of Poetry and Religion (1900)

A Hermit of Carmel, and Other Poems (1901)

The Life of Reason:

Introduction and Reason in Common Sense (1905)
Reason in Society (1905)
Reason in Religion (1905)
Reason in Art (1905)
Reason in Science (1906)

Three Philosophical Poets: Lucretius, Dante, and Goethe (1910)

Winds of Doctrine: Studies in Contemporary Opinion (1913)

Egotism in German Philosophy (1915)

Character and Opinion in the United States (1920)

Little Essays (1920)

Soliloquies in England and Later Soliloquies (1922)

Poems (1922)

Scepticism and Animal Faith (1923)

Dialogues in Limbo (1926)

Platonism and the Spiritual Life (1927)

Realms of Being (one-volume edition, 1942):

The Realm of Essence (1927)
The Realm of Matter (1930)
The Realm of Truth (1938)
The Realm of Spirit (1940)

The Genteel Tradition at Bay (1931)

Some Turns of Thought in Modern Philosophy (1933)

The Last Puritan (1935)

Obiter Scripta: Lectures, Essays and Reviews (Edited by Justus Buchler and Benjamin Schwartz) (1936)

Persons and Places:

Persons and Places (1944)
The Middle Span (1945)
My Host the World (1953)

The Idea of Christ in the Gospels (1946)

Dialogues in Limbo, with Three New Dialogues (1948)

Dominations and Powers (1951)