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Philosophical Letters: or, modest Reflections upon some Opinions in Natural Philosophy
Duchess of Margaret Cavendish Newcastle
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The World's Greatest Books — Volume 14 — Philosophy and Economics
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Betrachtungen über die Grundlagen der Philosophie (German)
René Descartes
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Cowley's Essays
Abraham Cowley
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Essays
David Hume
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Filosofía Fundamental, Tomo I (Spanish)
Jaime Luciano Balmes
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Platons Gastmahl (German)
Plato
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Supplément au Voyage de Bougainville (French)
Denis Diderot
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What Nietzsche Taught
Willard Huntington Wright
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Creative Intelligence: Essays in the Pragmatic Attitude
John Dewey, James Hayden Tufts, Addison Webster Moore, Harold Chapman Brown, George H. Mead, Boyd Henry Bode, Henry Waldgrave Stuart, and Horace Meyer Kallen
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Philosophical Letters of Friedrich Schiller
Friedrich Schiller
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Philosophical Studies
G. E. Moore
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An Introduction to Philosophy
George Stuart Fullerton
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El Criterio (Spanish)
Jaime Luciano Balmes
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Aesthetic as Science of Expression and General Linguistic
Benedetto Croce
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The Influence of Darwin on Philosophy, and other essays in contemporary thought
John Dewey
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Philosophy and the Social Problem
Will Durant
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The Approach to Philosophy
Ralph Barton Perry
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Landmarks of Scientific Socialism: "Anti-Duehring"
Friedrich Engels
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Lectures on the Philosophy of the Human Mind (Vol. 1 of 3)
Thomas Brown
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La monadologie (1909) (French)
Freiherr von Gottfried Wilhelm Leibniz
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Filosofía Fundamental, Tomo III (Spanish)
Jaime Luciano Balmes
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Essays: Scientific, Political, & Speculative; Vol. 1 of 3
Herbert Spencer
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The Positive Outcome of Philosophy
Joseph Dietzgen
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Illustrations of Universal Progress: A Series of Discussions
Herbert Spencer
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