|Class P - Language and literature
Subclass N - General literature
- Hoyt's New Cyclopedia of Practical Quotations, 1922 by Jehiel Keeler Hoyt, compiled by Kate Louise Roberts
- Quotations from Chairman Mao Tse-tung, by Mao Zedong, translated by the Foreign Language Press
- Wikiquote, Wikisource's sister project devoted to collecting quotations.