Winds of Doctrine: Studies in Contemporary Opinion By: George Santayana

Lesser Hippias By: Plato (Πλάτων)

Religion and Science from Galileo to Bergson By: John Charlton Hardwick

Elementary Theosophy By: L. W. Rogers

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

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

Thoughts Are Things By: Prentice Mulford

Book of Life By: Upton Sinclair

Riddle of the Universe By: Ernst Haeckel

Your Psychic Powers and How to Develop Them By: Hereward Carrington

Marriage of Heaven and Hell By: William Blake

Physics By: Aristotle

Character Building By: Booker T. Washington

Age of Reason (version 2) By: Thomas Paine

Letters of a Post-Impressionist By: Vincent Van Gogh

Philosophy of the Plan of Salvation By: James Barr Walker

Exotics and Retrospectives By: Lafcadio Hearn

Posthumous Essays of John Churton Collins By: John Churton Collins

Magna Moralia By: Aristotle

Mental Fascination By: William Walker Atkinson

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

Tusculan Disputations By: Marcus Tullius Cicero

World As Will and Idea, Vol. 1 of 3 By: Arthur Schopenhauer

Dissertation Concerning the Nature of True Virtue By: Jonathan Edwards

My Confession By: Leo Tolstoy

World as Will and Idea, Vol. 2 of 3 By: Arthur Schopenhauer

Introduction to Mathematical Philosophy By: Bertrand Russell

Human Sacrifice By: John Emerich Edward Dalberg-Acton

World as Will and Idea Volume 1 By: Arthur Schopenhauer

Quatrains of Omar Khayyam of Nishapur By: Omar Khayyám

Vairagya Shatakam By: Bhartṛhari

Theologico-Political Treatise By: Benedict de Spinoza

Thoughts are Things (Version 2) By: Prentice Mulford

American Philosophy Collection Vol. 1 By: Various

Defence of Idealism By: May Sinclair

Quintessence of Ibsenism By: George Bernard Shaw

Philosophy of Logical Atomism By: Bertrand Russell

Our Knowledge of the External World: As a Field for Scientific Method in Philosophy By: Bertrand Russell

Journal of John Woolman By: John Woolman

Essays in Experimental Logic By: John Dewey

Mysticism and Logic and Other Essays By: Bertrand Russell

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

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

Madman: His Parables And Poems and The Forerunner: His Parables And Poems By: Kahlil Gibran

World’s Story Volume I: China, Japan and the Islands of the Pacific By: Eva March Tappan

World’s Story Volume II: India, Persia, Mesopotamia and Palestine By: Eva March Tappan

World’s Story Volume III: Egypt, Africa and Arabia By: Eva March Tappan

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

Passages from the Life of a Philosopher By: Charles Babbage

Essay Concerning Human Understanding Book II By: John Locke

World’s Story Volume IV: Greece and Rome By: Eva March Tappan

Phenomenology of Mind, Volume 2 By: Georg Wilhelm Friedrich Hegel

Privilege of Pain By: Caroline Kane Mills Everett

History of Philosophy By: William Turner

Sikh Religion: its Gurus, Sacred Writings and Authors, Volume 6 By: Max Arthur Macauliffe

Early Greek Philosophy and Other Essays By: Friedrich Nietzsche

Birth of Tragedy By: Friedrich Nietzsche

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

Thomas Hobbes By: Alfred Edward Taylor

English Secularism By: George J. Holyoake

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

Woman and the War By: Frances Evelyn (Daisy) Greville

Dhammapada (Version 3) By: Unknown

Modern Magic By: Maximilian Schele De Vere

Sree Krishna, The Lord of Love By: Baba Premanand Bharati

Pagan & Christian Creeds: Their Origin and Meaning By: Edward Carpenter

Shri Dnyaneshwar - A Sketch Of His Life And Teachings By: Anonymous

Life of Henry David Thoreau By: Henry Salt