- The Chosen People
- The Comedy of Celebrities
- The Conceit of Artists
- The Consciousness of Appearance
- The Convalescent (LVII)
- The Dance-Song (XXXII)
- The Dawn of Day (Book I) (Ft. John McFarland Kennedy)
- The Dawn of Day (Book II) (Ft. John McFarland Kennedy)
- The Dawn of Day (Book III) (Ft. John McFarland Kennedy)
- The Dawn of Day (Book IV) (Ft. John McFarland Kennedy)
- The Dawn of Day (Book V) (Ft. John McFarland Kennedy)
- The Desire for Suffering
- The Element of Moral Scepticism in Christianity
- The Error of Christ.
- The Extent of the Moral
- The Failure of Reformations
- The Famous Wise Ones (XXX)
- The Followers of Schopenhauer
- The Four Errors
- The Friend (XIV)