After Music By: Josephine Preston Peabody

Age of Reason (version 2) By: Thomas Paine

Alcibiades I By: Plato (Πλάτων)

American Philosophy Collection Vol. 1 By: Various

Amoretti: A sonnet sequence By: Edmund Spenser

Analects of Confucius By: Confucius 孔子

Ancient and Modern Celebrated Freethinkers By: Charles Bradlaugh

Apology By: Plato

Astral Plane: Its Scenery, Inhabitants and Phenomena By: C. W. Leadbeater

Auguste Comte and Positivism By: John Stuart Mill

Birth of Tragedy By: Friedrich Nietzsche

Book of Life By: Upton Sinclair

Book of the Foundations By: St. Teresa of Avila

Born Again By: Alfred Lawson

Case of Wagner / Nietzsche Contra Wagner / Selected Aphorisms By: Friedrich Nietzsche

Character Building By: Booker T. Washington

Commentary on Galatians By: St. John Chrysostom

Complete Works of Friedrich Nietzsche: Volume 3 By: Friedrich Nietzsche

Considerations on Representative Government By: John Stuart Mill

Cosmos: A Sketch of a Physical Description of The Universe: Introduction By: Alexander von Humboldt

Cratylus By: Unknown

Critias By: Plato (Πλάτων)

Defence of Idealism By: May Sinclair

Democracy and Education: An Introduction to the Philosophy of Education By: John Dewey

Dhammapada (Version 3) By: Unknown

Dissertation Concerning the Nature of True Virtue By: Jonathan Edwards

Early Greek Philosophy and Other Essays By: Friedrich Nietzsche

Ecce Homo By: Friedrich Nietzsche

Elementary Theosophy By: L. W. Rogers

English Secularism By: George J. Holyoake

Enquiry Concerning the Principles of Morals By: David Hume

Essay Concerning Human Understanding Book II By: John Locke

Essay Concerning Humane Understanding By: John Locke

Essays in Experimental Logic By: John Dewey

Essays, Book 1 By: Michel Eyquem de Montaigne

Exotics and Retrospectives By: Lafcadio Hearn

Final Report of the Advisory Committee on Human Radiation Experiments By: Advisory Committee on Human Radiation Experiments

Friendship By: Hugh Black

General View of Positivism By: Auguste Comte

Gorgias By: Plato (Πλάτων)

Guide to Stoicism By: St. George William Joseph Stock

Hidden Treasures By: Harry A. Lewis

History of Philosophy By: William Turner

Human Nature And Conduct - Part 1, The Place of Habit in Conduct By: John Dewey

Human Sacrifice By: John Emerich Edward Dalberg-Acton

Ingersoll on ABRAHAM LINCOLN, from the Works of Robert G. Ingersoll, Volume 3, Lecture 3 By: Robert G. Ingersoll

Introduction to Mathematical Philosophy By: Bertrand Russell

John Stuart Mill; His Life and Works By: Various

Journal of John Woolman By: John Woolman

Kybalion (version 2) By: The Three Initiates

Laotzu's Tao and Wu Wei By: Lao Tzu

Laws By: Plato

Lesser Hippias By: Plato (Πλάτων)

Letters of a Post-Impressionist By: Vincent Van Gogh

Letters to a Daughter and A Little Sermon to School Girls By: Helen Ekin Starrett