Books in Category: Philosophy & Ethics
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The writings of Origen, Vol. 2 (of 2)
Origen
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Dante and the early astronomers
M. A. Orr
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Meditaciones del Quijote (Spanish)
José Ortega y Gasset
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The Old Humanities and the New Science
Sir William Osler
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A way of life : An address to Yale students Sunday evening, April 20th, 1913
Sir William Osler
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Man's Redemption of Man: A Lay Sermon
Sir William Osler
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Natural Philosophy
Wilhelm Ostwald
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Feltalálók, felfedezők, nagy emberek (Hungarian)
Wilhelm Ostwald
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The Bible of nature : or, The principles of secularism. A contribution to the religion of the future
Felix L. Oswald
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The case against evolution
George Barry O'Toole
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Der Sprung aus dem Fenster (German)
Karl Otten
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A marxizmus társadalomelmélete : Elméleti kritika és történelmi tanulságok (Hungarian)
László Ottlik
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Naturalism and Religion
Rudolf Otto
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Why Authors Go Wrong, and Other Explanations
Grant M. Overton
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Owen's Moral Physiology; or, A Brief and Plain Treatise on the Population Question
Robert Dale Owen
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Thaumaturgia; Or, Elucidations of the Marvellous
Oxonian
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Psychomancy: Spirit-Rappings and Table-Tippings Exposed
Charles Grafton Page
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The Writings of Thomas Paine — Volume 2 (1779-1792): The Rights of Man
Thomas Paine
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The Writings of Thomas Paine — Volume 4 (1794-1796): The Age of Reason
Thomas Paine
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Evidences of Christianity
William Paley
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The Teacher: Essays and Addresses on Education
Alice Freeman Palmer and George Herbert Palmer
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Altruism: Its Nature and Varieties
George Herbert Palmer
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The Nature of Goodness
George Herbert Palmer
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Where Science and Religion Meet
William Scott Palmer
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De Wonderbouw der Wereld : De Grondslagen van Ons Sterrekundig Wereldbeeld Populair Uiteengezet (Dutch)
Anton Pannekoek
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