| The Theory of Moral Sentiments Smith, Adam / Used - Hardcover | | $1,800.00 |
| Foundations of the Social Sciences, The Structure of Scientific Revolutions, Science and the Structure of Ethics, Theory of Valuation, (and) The Technique of Theory Construction (International Encyclopedia of Unified Science Volume II, Nos. 1-5) Neurath, Otto, Thomas S. Kuhn, Abraham Edel, John Dewey, (and) J.H. Woodger / Used - Hardcover | | $1,200.00 |
| The Open Society and Its Enemies Popper, Karl R. / Used - Hardcover | | $750.00 |
| An Essay Concerning Human Understanding, to which are now added I. An Analysis of Mr. Locke's Doctrine of Ideas, on a Large Sheet, II. A Defence of Mr. Locke's Opinion concerning personal Identity, with an Appendix, III. A Treatise on the Conduct of Understanding, IV. Some Thoughts concerning Reading and Study, for a Gentleman, V. Elements of Natural Philosophy, VI. A new Method of a Common-Place-Book, to which is prefixed The Life of the Author: Volume I, II and III Locke, John / Used - Hardcover | | $450.00 |
| The Constitution of Liberty Hayek, F.A. / Used - Hardcover | 1st Edition | $325.00 |
| The Copernican Revolution Kuhn, Thomas S. / Used - Hardcover | 1st Edition Near fine Dust Jacket | $275.00 |
| Aesthetic Theory (Theory and History of Literature) Adorno, Theodor W. (Robert Hullot-Kentor, editor/translator) / Used - Hardcover | 1st Edition Near fine Dust Jacket | $125.00 |
| The Analysis of Matter Russell, Bertrand / Used - Hardcover | | $95.00 |
| Elements of Political Economy Mill, James / Used - Hardcover | | $90.00 |
| Voltaire and Rousseau Against the Atheists; or, Essays and Detached Passages from Those Writers, in Relation to the Being and Attributes of God Akerly, J., editor/translator / Used - Hardcover | | $75.00 |
| Anthem Rand, Ayn / Used - Hardcover | | $65.00 |
| Leibniz: Logical Papers Leibniz, Gottfried, and G.H.R. Parkinson, editor/translator / Used - Hardcover | | $60.00 |
| The Logical Syntax of Language Carnap, Rudolf (C.K. Ogden, editor) / Used - Hardcover | Dust Jacket | $60.00 |
| Language and Myth Cassirer, Ernst (Sausanne K. Langer, translator) / Used - Hardcover | | $60.00 |
| Our Knowledge of the External World Russell, Bertrand / Used - Hardcover | | $60.00 |
| A System of Logic, Ratiocinative and Inductive; being a connected view of The Principles of Evidence and the Methods of Scientific Investigation Mill, John Stuart / Used - Hardcover | | $55.00 |
| An Essay Concerning Human Understanding and A Treatise on the Conduct of the Understanding (Locke's Essays) Locke, John / Used - Hardcover | | $50.00 |