By Subject of Literary Work - Thought or thinking
- Peter Quince at the Clavier
- Philosophy and the Mirror of Nature
- Political Poem
- The Principle of Hope
- Prison Notebooks
- The Proper Study of Mankind
- Revelation
- Russian Thinkers
- Saving the Appearances
- The Seekers
- Selected Stories of Philip K. Dick
- Shadows of the Mind
- Sinister Barrier
- The Size of Thoughts
- Skepticism and Modern Enmity
- The Society of Mind
- Sonnet 30
- The Sovereignty of Good
- The Tennis Court Oath
- Tests of Time
- Thought and Language
- The Thought-Fox
- Time and Western Man
- Two Essays on Analytical Psychology
- Unauthorized Freud
- Unmailed, Unwritten Letters
- Utopia
- A Voice from the Chorus
- Walden
- The Watcher
- A Week on the Concord and Merrimack Rivers
- The Weight of the World
- Words and Rules
- The World as Will and Idea
- Writing and Difference
- Young Man from the Piedmont
- Zen and the Art of Motorcycle Maintenance
