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

Some Problems of Philosophy By: William James

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