Studies in Philosophy And The History of philosophy
edited by John K. Ryan
The Catholic University of America Press, 1963
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Stumpf, Samuel Enoch, 1918-1998
Philosophical problems: selected readings in ethics, religion, political philosophy, epistemology, and metaphysics
McGraw-Hill, 1971
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Ideological differences and world order: studies in the philosophy and science of the world's cultures
edited by F.S.C. Northrop
Yale University Press, 1949
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Patrick, George Thomas White
Introduction to philosophy
George Allen and Unwin, 1925
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Russell, Bertrand, 1872-1970
The problems of philosophy
Oxford University Press, 1912
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