- Les Noces ChimiquesAuthor: Christian RosencreutzLanguage: French
- Les opinions de M. Jérôme Coignard: Recueillies par Jacques TournebrocheAuthor: Anatole FranceLanguage: French
- Lesser HippiasAuthor: Plato, Benjamin JowettLanguage: English
- Lessons in Life; A Series of Familiar EssaysAuthor: J. G. (Josiah Gilbert) HollandLanguage: English
- Letter to the Reverend Mr. Cary: Containing Remarks upon his Review of the Grounds of: Christianity Examined by Comparing the New Testament to: the OldAuthor: George Bethune EnglishLanguage: English
- Letters on Demonology and WitchcraftAuthor: Walter Scott, Henry MorleyLanguage: English
- Levels of Living: Essays on Everyday IdealsAuthor: Henry Frederick CopeLanguage: English
- LeviathanAuthor: Thomas HobbesLanguage: English
- Life and ConductAuthor: J. Cameron (James Cameron) LeesLanguage: English
- Life and Death of Mr. BadmanAuthor: John BunyanLanguage: English
- Life and HabitAuthor: Samuel Butler, R. A. (Richard Alexander) StreatfeildLanguage: English
- Life's EnthusiasmsAuthor: David Starr JordanLanguage: English
- Life, letters, and Epicurean philosophy of Ninon de L'Enclos, the celebrated beauty of the seventeenth centuryAuthor: Ninon de Lenclos, William Hassell Overton, Charles Henry RobinsonLanguage: English
- Life: Its True GenesisAuthor: Horatius FlaccusLanguage: English
- Light on the Path and Through the Gates of GoldAuthor: Mabel CollinsLanguage: English
- Little Journeys to the Homes of the Great - Volume 10: Little Journeys To The Homes Of Great TeachersAuthor: Elbert HubbardLanguage: English
- Little Journeys to the Homes of the Great Philosophers, Volume 8Author: Elbert HubbardLanguage: English
- Littérature et Philosophie mêléesAuthor: Victor HugoLanguage: French
- Lives of the NecromancersAuthor: William GodwinLanguage: English
- Logic: Deductive and InductiveAuthor: Carveth ReadLanguage: English
- LogicaAuthor: Andres PiquerLanguage: Spanish
- Love, Life & Work: Being a Book of Opinions Reasonably Good-Natured Concerning How to Attain the Highest Happiness for One's Self with the Least Possible Harm to OthersAuthor: Elbert HubbardLanguage: English
- LuciferoAuthor: Mario RapisardiLanguage: Italian
- Luck, or Cunning, as the Main Means of Organic ModificationAuthor: Samuel ButlerLanguage: English
- LysisAuthor: Plato, Benjamin JowettLanguage: English
- M. Fabi Quintiliani institutionis oratoriae liber decimusAuthor: Quintilian, 35?-, William PetersonLanguage: Latin
- Mabini's Decalogue for FilipinosAuthor: Apolinario MabiniLanguage: English
- Machiavelli, Volume IAuthor: Niccolò Machiavelli, Henry John Cockayne Cust, Dacres, Edward [Translator], Whitehorne, Peter [Translator]Language: English
- Making the Most of LifeAuthor: J. R. (James Russell) MillerLanguage: English
- Man MadeAuthor: Teichner, AlbertLanguage: English
- Man or Matter: Introduction to a Spiritual Understanding of Nature on the Basis of Goethe's Method of Training Observation and ThoughtAuthor: Ernst LehrsLanguage: English
- Manhood of Humanity.Author: Alfred KorzybskiLanguage: English
- Mankind in the MakingAuthor: H. G. (Herbert George) WellsLanguage: English
- Marius the Epicurean — Volume 2Author: Walter PaterLanguage: English
- Martin Luther's Large Catechism, translated by Bente and DauAuthor: Martin Luther, F. (Friedrich) Bente, W. H. T. (William Herman Theodore) DauLanguage: English
- Meditationes de prima philosophiaAuthor: René DescartesLanguage: Latin
- MeditationsAuthor: Emperor of Rome Marcus AureliusLanguage: English
- Mehiläisten elämäAuthor: Maurice Maeterlinck, Anna FieandtLanguage: Finnish
- Mein Leben und StrebenAuthor: Karl MayLanguage: German
- Memnon ou la sagesse humaineAuthor: VoltaireLanguage: French
- Memories and StudiesAuthor: William James, Henry JamesLanguage: English
- Men in the MakingAuthor: Shepherd, AmbroseLanguage: English
- MenexenusAuthor: Plato, Benjamin JowettLanguage: English
- MenoAuthor: Plato, Benjamin JowettLanguage: English
- Menschliches, Allzumenschliches: Ein Buch Fuer Freie GeisterAuthor: Friedrich Wilhelm NietzscheLanguage: German
- Metodin esitys: Mielenliikutuksien tutkistelu. Metafyysillisiä mietelmiä.Author: René DescartesLanguage: Finnish
- Mind and Motion and MonismAuthor: George John RomanesLanguage: English
- Miscellaneous Studies; a series of essaysAuthor: Walter PaterLanguage: English
- Modern Atheism under its forms of Pantheism, Materialism, Secularism, Development, and Natural LawsAuthor: James BuchananLanguage: English
- Monism as Connecting Religion and Science: A Man of ScienceAuthor: Ernst HaeckelLanguage: English
- Mont-Saint-Michel and ChartresAuthor: Henry AdamsLanguage: English
- Montaigne and ShakspereAuthor: J. M. (John Mackinnon) RobertsonLanguage: English
- Moral Deliberations in Modern CinemaAuthor: Samuel Vaknin, Rangelovska, Lidija [Editor]Language: English
- Moral Philosophy: Ethics, Deontology and Natural LawAuthor: Joseph RickabyLanguage: English
- Moral Principles and Medical Practice: The Basis of Medical JurisprudenceAuthor: Charles CoppensLanguage: English
- Moral Principles in EducationAuthor: John DeweyLanguage: English
- Moral Science; a Compendium of EthicsAuthor: Alexander BainLanguage: English
- Morality as a religionAuthor: W. R. Washington (William Robert Washington) SullivanLanguage: English
- Morals and Dogma of the Ancient and Accepted Scottish Rite of FreemasonryAuthor: Albert PikeLanguage: English
- Mr. Gladstone and Genesis: Essay #5 from "Science and Hebrew Tradition"Author: Thomas Henry HuxleyLanguage: English