| Author | Dates for Author | Title | Date of pub. | Type of Work | Search in Google | S | AC | KL | W | G | U | P |
| Abelard, Peter | 1079-1142 | Glosses of Porphyry, The | 12th cent. | Epistemology | Search | 643 | ||||||
| Alexander, Samuel | 1859-1938 | Space, Time, and Deity | 1920 | Metaphysics | Search | 1735 | ||||||
| Anaxagoras of Clazomenae | Anaxagoras: Fragments | Metaphysics | Search | 52 | ||||||||
| Anaximander of Miletus | c.611-c.546 | Anaximander: Fragments | 6th cent. B.C. | Metaphysics | Search | 1 | ||||||
| Anselm of Canterbury, Saint | 1033-1109 | Monologion | 1078 | Theology | Search | C | 632 | |||||
| Anselm of Canterbury, Saint | 1033-1109 | Proslogion | 1078 | Theology | Search | C | K | 632 | ||||
| Aquinas, Saint Thomas | c.1225-1274 | Summa Contra Gentiles | c.1258-1260 | Theology, metaphysics | Search | C | K | 693 | ||||
| Aquinas, Saint Thomas | c.1225-1274 | Summa Theologica | c.1265-1274 | Metaphysics, theology | Search | 3 | C | K | 17 | 704 | ||
| Aquinas, Saint Thomas | c.1225-1274 | Summa Theologica | c.1265-1274 | Metaphysics, theology | Search | 3 | C | K | 18 | 704 | ||
| Aristotle | 384-322 B.C. | Ethica Nicomachea | ? | Ethics | Search | 8 | 369 | |||||
| Aristotle | 384-322 B.C. | Metaphysics | 4th cent. B.C. | Metaphysics | Search | 359 | ||||||
| Aristotle | 384-322 B.C. | On the Soul (De Anima) | c.330 B.C. | Metaphysics, philosophical psychology | Search | 7 | 348 | |||||
| Aristotle | 384-322 B.C. | Organon | c.350 B.C. | Logic, metaphysics | Search | 329 | ||||||
| Aristotle | 384-322 B.C. | Physics | 4th cent. B.C. | Metaphysics, philosophy of physics | Search | 7 | 340 | |||||
| Aristotle | 384-322 B.C. | Poetics, The | 334-323 B.C. | Aesthetics | Search | 3 | 8 | 400 | ||||
| Aristotle | 384-322 B.C. | Politics | 336-322 B.C. | Political philosophy | Search | 8 | 381 | |||||
| Aristotle | 384-322 B.C. | Rhetoric | 4th cent. B.C. | Philosophy of rhetoric | Search | 8 | 391 | |||||
| Augustine, Saint | 354-430 | City of God, The | c.413-426 | Theology | Search | C | K | 16 | 571 | |||
| Augustine, Saint | 354-430 | Confessions of Saint Augustine, The | c.397 | Theology, metaphysics (religious autobiography) | Search | 3 | C | K | 16 | 560 | ||
| Austin, J.L. | How to Do Things with Words | 1962 | Search | 2513 | ||||||||
| Austin, J.L. | Sense and Sensibilia | 1962 | Search | 2502 | ||||||||
| Averroes | 1126-1198 | Incoherence of the Incoherence, The | 12th cent. | Theology, metaphysics | Search | 652 | ||||||
| Avicenna | 980-1037 | Book of Salvation, The | 11th cent. | Metaphysics, philosophy of mind, epistemology | Search | 621 | ||||||
| Ayer, Alfred Jules | 1910- | Language, Truth and Logic | 1936 | Philosophy of philosophy, epistemology | Search | 2127 | ||||||
| Bacon, Sir Francis | 1561-1626 | Advancement of Learning, The | 1605 | Epistemology, philosophy of science | Search | 28 | 795 | |||||
| Bacon, Sir Francis | 1561-1626 | Novum Organum | 1620 | Philosophy of science | Search | 28 | 805 | |||||
| Baier, Kurt | Moral Point of View, The | 1958 | Search | 2478 | ||||||||
| Barth, Karl | 1886-1968 | Knowledge of God and the Service of God, The | 1938 | Theology | Search | 2160 | ||||||
| Bayle, Pierre | 1647-1706 | Historical and Critical Dictionary, The | 1695-1697 | Skeptical criticism of theology | Search | 935 | ||||||
| Bell, Clive | Art | Search | 1680 | |||||||||
| Bentham, Jeremy | 1748-1832 | Introduction to the Principles of Morals and Legislation, An | 1789 | Ethics | Search | 1166 | ||||||
| Berdyaev, Nicholas | 1874-1948 | Destiny of Man, The | 1931 | Theology, ethics, epistemology | Search | 1979 | ||||||
| Bergson, Henri | 1859-1941 | Creative Evolution | 1906 | Search | 1616 | |||||||
| Bergson, Henri | 1859-1941 | Introduction to Metaphyics, An | 1903 | Search | 55 | 1582 | ||||||
| Bergson, Henri | 1859-1941 | Time and Free Will | 1889 | Metaphysics | Search | 1484 | ||||||
| Bergson, Henri | 1859-1941 | Two Sources of Morality and Religion, The | 1932 | Ethics, philosophy of religion | Search | C | 2013 | |||||
| Berkeley, George | 1685-1753 | Three Dialogues Between Hylas and Philonous | Search | 980 | ||||||||
| Berkeley, George | 1685-1753 | Treatise Concerning the Principles of Human Knowledge, A | 1710 | Metaphysics, epistemology | Search | 33 | 946 | |||||
| Blanshard, Brand | 1892- | Nature of Thought, The | 1939 | Philosophy of mind | Search | 2186 | ||||||
| Boethius, Ancius Manlius Severinus | c.480-524 | Consolation of Philosophy, The | 523 | Ethics, metaphysics | Search | 3 | K | 582 | ||||
| Bonaventure, Saint | 1221-1274 | Journey of the Mind to God | 1259 | Theology, epistemology | Search | C | K | 681 | ||||
| Bonaventure, Saint | 1221-1274 | On the Reduction of the Arts to Theology | c.1250 | Theology | Search | 673 | ||||||
| Bosanquet, Bernard | 1848-1923 | Principles of Individuality and Value, The | 1912 | Metaphysics, philosophy of value | Search | 1660 | ||||||
| Bosanquet, Bernard | 1848-1923 | Three Lectures on Aesthetics | 1915 | Aesthetics | Search | 1702 | ||||||
| Bradley, Francis Herbert | 1846-1924 | Appearance and Reality | 1893 | Metaphysics | Search | 1493 | ||||||
| Bradley, Francis Herbert | 1846-1924 | Ethical Studies | 1876 | Ethics | Search | 1418 | ||||||
| Bridgman, Percy Williams | 1882- | Logic of Modern Physics, The | 1927 | Philosophy of science | Search | 1858 | ||||||
| Broad, Charlie Dunbar | 1887- | Mind and Its Place in Nature, The | 1925 | Metaphysics, philosophy of mind, epistemology | Search | 1824 | ||||||
| Brunner, Heinrich Emil | 1889- | Revelation and Reason | 1941 | Theology, epistemology | Search | 2222 | ||||||
| Bruno, Giordano | c.1548-1600 | Dialogues Concerning Cause, Principle, and One | 1584 | Metaphysics, theology | Search | 786 | ||||||
| Buber, Martin | 1878-1965 | I and Thou | 1923 | Theology, epistemology | Search | C | 1801 | |||||
| Buchner, Friedrich Karl Christian Ludwig | 1824-1899 | Force and Matter | 1855 | Metaphysics, natural philosophy | Search | 1333 | ||||||
| Butler, Joseph | 1692-1752 | Fifteen Lectures Preached at the Rolls Chapel | 1726 | Metaphysics, philosophy of mind | Search | 991 | ||||||
| Camus, Albert | 1913-1960 | Rebel, The | 1951 | Ethics | Search | 2392 | ||||||
| Carnap, Rudolf | 1891- | Introduction to Semantics | 1942 | Philosophy of semantics | Search | 2259 | ||||||
| Carnap, Rudolf | 1891- | Philosophy and Logical Syntax | 1935 | Philosophy of philosophy | Search | 2102 | ||||||
| Cassirer, Ernst | 1874-1945 | Philosophy of Symbolic Forms, The | 1923-1925 | Epistemology, philosophy of culture | Search | 1789 | ||||||
| Chuang Chou (Chuang Tzu) | c.370-c.285 B.C. | Chuang Tzu | c.300 B.C. | Metaphysics, ethics | Search | 422 | ||||||
| Collingwood, Robin George | 1889-1943 | Essay on Metaphysics, An | 1940 | Philosophy of metaphysics | Search | 2197 | ||||||
| Comte, Auguste | 1798-1857 | Course on the Positive Philosophy | 1830-1842 | Social philosophy | Search | 1246 | ||||||
| Confucius | c.551-c.479 B.C. | Analects of Confucius, The (Lun Yu) | 6th-5th cent. B.C. | Ethics, political philosophy, epistemology | Search | 21 | ||||||
| Cooper, Anthony Ashley, Earl of Shaftesbury | 1671-1713 | Characteristics | 1711 | Ethics | Search | 968 | ||||||
| Croce, Benedetto | 1866-1952 | Aesthetic | 1901 | Aesthetic philosophy and history | Search | 4 | 1571 | |||||
| Democritus of Abdera | c.460-c.370 B.C. | Democritus: Fragments | 4th cent. B.C. | Philosophy of nature | Search | 135 | ||||||
| Descartes, Rene | 1596-1650 | Discourse on Method | 1637 | Philosophy of philosophy, metapysics | Search | 28 | 816 | |||||
| Descartes, Rene | 1596-1650 | Meditations on First Philosophy | 1641 | Metaphysics, epistemology | Search | 28 | 828 | |||||
| Dewey, John | 1859-1952 | Art as Experience | 1934 | Aesthetics | Search | 2068 | ||||||
| Dewey, John | 1859-1952 | Human Nature and Conduct | 1922 | Ethics | Search | 1763 | ||||||
| Dewey, John | 1859-1952 | Logic, the Theory of Inquiry | 1938 | Logic, epistemology | Search | 2172 | ||||||
| Dewey, John | 1859-1952 | Quest for Certainty, The | 1929 | Philosophy of philosophy, pragmatism | Search | 1909 | ||||||
| Diderot, Denis | 1713-1784 | Thoughts on the Interpretation of Nature | 1754 | Philosophy of science, epistemology | Search | 1050 | ||||||
| Ducasse, Curt John | 1881- | Nature, Mind, and Death | 1951 | Philosophy of philosophy, metaphysics, epistemology | Search | 2403 | ||||||
| Ducasse, Curt John | 1881- | Philosophy of Art, The | Aesthetics | Search | 1920 | |||||||
| Duns Scotus, Johannes | c.1265-1308 | Tract Concerning the First Principle, A (De Primo Principio) | c.1300 | Theology | Search | K | 718 | |||||
| Edwards, Jonathan | 1703-1758 | Freedom of the Will | 1754 | Metaphysics, theology | Search | C | 1061 | |||||
| Empedocles of Acragas | c.493-433 B.C. | Empedocles: Fragments | 5th cent. B.C. | Metaphysics | Search | 62 | ||||||
| Epictetus | c.65-c.135 | Discourses and Manual | c.120 | Ethics | Search | 11 | 505 | |||||
| Epicurus | c.342-c.270 B.C. | Principal Doctrines and Letter to Menoeceus | 3rd cent. B.C. | Ethics | Search | 432 | ||||||
| Erigena, Johannes Scotus | c.810-c.877 | On the Division of Nature | 9th cent. | Metaphysics | Search | 611 | ||||||
| Fichte, Johann Gottlieb | 1762-1814 | Vocation of Man, The | 1800 | Epistemology, ethics | Search | 1201 | ||||||
| Gassendi, Pierre | 1592-1655 | Syntagma Philosophicum | 1658 | Logic, epistemology, philosophy of nature, ethics | Search | 863 | ||||||
| Gilson, Etienne Henry | 1884- | Spirit of Medieval Philosophy, The | 1931-32 | ontology, theology | Search | K | 1991 | |||||
| Green, Thomas Hill | 1836-1882 | Prolegomena to Ethics | 1883 | Ethics, metaphysics | Search | 1428 | ||||||
| Haeckel, Ernst Heinrich | 1834-1919 | Riddle of the Umverse, The | 1899 | Search | 1548 | |||||||
| Han Fei | Han Fei Tzu | Political philosophy | Search | 462 | ||||||||
| Hare, R.M. | Freedom and Reason | 1963 | Search | 2444 | ||||||||
| Hare, R.M. | Language of Morals, The | 1952 | Search | 2444 | ||||||||
| Hartmann, Eduard Von | 1842-1906 | Philosophy of the Unconscious, The | 1869 | Metaphysics | Search | 1384 | ||||||
| Hartmann, Nicolai | 1882-1950 | Ethics | 1926 | Ethics | Search | 1834 | ||||||
| Hegel, Georg Wilhelm Friedrich | 1770-1831 | Logic | 1812-1816 | Logic, metaphysics | Search | 1226 | ||||||
| Hegel, Georg Wilhelm Friedrich | 1770-1831 | Phenomenology of Spirit, The | 1807 | Search | C | 1214 | ||||||
| Hegel, Georg Wilhelm Friedrich | 1770-1831 | Philosophy of History, The | 1832 | Philosophy of History, metaphysics | Search | 43 | 1257 | |||||
| Heidegger, Martin | 1889-1976 | Being and Time | 1927 | Existential metaphysics | Search | 1869 | ||||||
| Heraclitus of Ephesus | c.540-c.480 B.C. | Heraclitus: Fragments | 5th cent. B. C. | Metaphysics | Search | 32 | ||||||
| Hobbes, Thomas | 1588-1679 | De Corpore | 1655 | Philosophy of philosophy, metapysics | Search | 851 | ||||||
| Hobbes, Thomas | 1588-1679 | Leviathan | 1651 | Political philosophy | Search | 3 | 21 | 839 | ||||
| Hsung Tzu | c.280-c.233 B.C. | Hsung Tzu | 3rd cent. B.C. | Search | 451 | |||||||
| Hui-neng | Platform Scripture of the Sixth Patriarch, The | Search | 591 | |||||||||
| Hume, David | 1711-1776 | Dialogues Concerning Natural Religion | 1779 | Philosophy of religion | Search | 1107 | ||||||
| Hume, David | 1711-1776 | Enquiry Concerning the Principles of Morals, An | 1751 | Ethics | Search | 1036 | ||||||
| Hume, David | 1711-1776 | Treatise of Human Nature, A | 1739 | Epistemology | Search | 1002 | ||||||
| Husserl, Edmund | 1859-1938 | Ideas: General Introduction to Pure Phenomenology | 1913 | Metaphysics, epistemology | Search | 1670 | ||||||
| Huxley, Thomas Henry | 1825-1895 | Collected Essays | 1893-1894 | Search | 1505 | |||||||
| James, William | 1842-1910 | Meaning of Truth, The | 1909 | Epistemology | Search | 1649 | ||||||
| James, William | 1842-1910 | Pragmatism | 1907 | Epistemology, Philosophy of philosophy | Search | 3 | 55 | U | 1638 | |||
| James, William | 1842-1910 | Will to Believe, The | 1897 | Search | 1536 | |||||||
| Jaspers, Karl | 1883- | Reason and Existenz | 1935 | Existential metaphysics | Search | 2115 | ||||||
| Joachim, Harold Henry | 1868-1938 | Nature of Truth, The | 1906 | Search | 1627 | |||||||
| Kant, Immanuel | 1724-1804 | Critique of Judgment | 1790 | Aesthetics, metaphysics | Search | 39 | 1176 | |||||
| Kant, Immanuel | 1724-1804 | Critique of Practical Reason | 1788 | Ethics | Search | 39 | 1154 | |||||
| Kant, Immanuel | 1724-1804 | Critique of Pure Reason | 1781 | Metaphysics | Search | 3 | 39 | 1118 | ||||
| Kant, Immanuel | 1724-1804 | Foundations of the Metaphysics of Morals | Search | 1131 | ||||||||
| Kierkegaard, Soren | 1813-1855 | Concluding Unscientific Postscript | 1846 | Existential theology | Search | C | 1320 | |||||
| Kierkegaard, Soren | 1813-1855 | Either/Or | 1843 | Existential metaphysics | Search | 1294 | ||||||
| Kierkegaard, Soren | 1813-1855 | Philosophical Fragments, | 1844 | Existential theology | Search | 1307 | ||||||
| Kung-Sun Lung | c.330-250 B.C. | Kung-sun Lung Tau | 3rd cent. B.C. | Logic, epistemology | Search | 441 | ||||||
| La Mettrie, Julien Offray De | 1709-1751 | Man a Machine, | 1748 | Metaphysics and natural philosophy | Search | 1024 | ||||||
| Leibniz, Gottfried Wilhelm von | 1646-1716 | Monadology | 1714 | Metaphysics | Search | 1270 | ||||||
| Leibniz, Gottfried Wilhelm von | 1646-1716 | New Essays on the Human Understanding | 1765 | Epistemology, ontology | Search | 1094 | ||||||
| Leibniz, Gottfried Wilhelm von | 1646-1716 | Theodicy | 1710 | Theology, metaphysics | Search | 958 | ||||||
| Lewis, Clarence Irving | 1883- | Analysis of Knowledge and Valuation, An | 1946 | Epistemology, philosophy of value | Search | 2324 | ||||||
| Lewis, Clarence Irving | 1883- | Mind and the World Order | 1929 | Epistemology | Search | 1931 | ||||||
| Locke, John | 1632-1704 | Essay Concerning Human Understanding, An | 1690 | Epistemology | Search | 3 | 33 | 910 | ||||
| Locke, John | 1632-1704 | Of Civil Government: The Second Treatise | 1690 | Political philosophy | Search | 33 | 923 | |||||
| Lotze, Rudolf Hermann | 1817-1881 | Microcosmus | 1856-1864 | Metaphysics | Search | 1343 | ||||||
| Lucretius (Titus Lucretius Carus) | c.98-55 B.C. | De rerum natura (Nature of Things) | 1st cent. B.C. | Ethics, metaphysics, philosophy of nature | Search | 3 | 11 | 494 | ||||
| Mach, Ernst | 1838-1916 | Analysis of the Sensations, The | 1886 | Philosophy of mind, epistemology | Search | 1449 | ||||||
| Machiavelli, Niccolo | 1469-1527 | Prince, The | 1532 | Political philosophy | Search | 3 | K | 21 | 764 | |||
| Maimonides | 1135-1204 | Guide for the Perplexed | 1190 | Metaphysics, theology | Search | 663 | ||||||
| Malebranche, Nicolas de | 1638-1715 | Dialogues on Metaphysics and on Religion | 1688 | Metaphysics, theology | Search | 899 | ||||||
| Marcel, Gabriel | 1887- | Mystery of Being, The | 1950 | Existential ontology | Search | K | 2370 | |||||
| Marcus Aurelius Antoninus | 121-180 | Meditations | 2nd cent. | Stoic ethics | Search | 3 | 11 | 514 | ||||
| Maritain, Jacques | 1882- | Degrees of Knowledge | 1932 | Metaphysics of knowledge | Search | K | 2024 | |||||
| Marx, Karl | 1818-1883 | Marx: Selected Works | Search | 1472 | ||||||||
| Mead, George Herbert | 1863-1931 | Mind, Self, and Society | 1934 | Philosophical psychology | Search | 2080 | ||||||
| Mencius | c.372-c.289 B.C. | Meng Tzu | 3rd cent. B.C. | Ethics | Search | 411 | ||||||
| Merleau-Ponty, Maurice | Phenomenology of Perception | Search | 2299 | |||||||||
| Mill, John Stuart | 1806-1873 | On Liberty | 1859 | Political philosophy | Search | 3 | 40 | 1353 | ||||
| Mill, John Stuart | 1806-1873 | System of Logic, A | 1843 | Logic, philosophy of induction | Search | 1282 | ||||||
| Mill, John Stuart | 1806-1873 | Utilitarianism | 1863 | Ethics | Search | 40 | 1373 | |||||
| Mo Ti | c.470-c.391 B.C. | Mo Tzu | 4th cent. B.C. | Ethics, political philosophy, logic | Search | 114 | ||||||
| Montaigne, Michel Eyquem de | 1533-1592 | Apology for Raimond Sebond | 1580 | Skeptical criticism of theology | Search | 775 | ||||||
| Moore, George Edward | 1873-1958 | Philosophical Studies | 1922 | Philosophy of philosophy (with examples) | Search | 1775 | ||||||
| Moore, George Edward | 1873-1958 | Principia Ethica | 1903 | Search | 1593 | |||||||
| More, Thomas, Saint | 1478-1525 | Utopia | 1516 | Political philosophy | Search | 3 | K | 753 | ||||
| Morris, Charles W. | 1901- | Signs, Language and Behavior | 1946 | Semiotic | Search | 2335 | ||||||
| Newman, John Henry Cardinal | 1801-1890 | Grammar of Assent, A | 1870 | Metaphysics, epistemology | Search | K | 1395 | |||||
| Nicholas of Cusa | c.1401-1464 | Of Learned Ignorance | 1440 | Metaphysica, theology | Search | C | K | 743 | ||||
| Niebuhr, Reinhold | 1892- | Nature and Destiny of Man, The | 1941-43 | Theology | Search | 2234 | ||||||
| Nietzsche, Friedrich Wilhelm | 1844-1900 | Beyond Good and Evil | 1886 | Ethics | Search | 3 | 43 | 1459 | ||||
| Nietzsche, Friedrich Wilhelm | 1844-1900 | Thus Spake Zarathustra | 1883-1885 | Ethics | Search | 3 | 1438 | |||||
| Ogden, C.K. | Meaning of Meaning, The | Search | 1813 | |||||||||
| Ogden, C.K., and I.A. Richards | Meaning of Meaning, The | Search | 1813 | |||||||||
| Origen | c.185-c.254 | On First Principles (De Principiis) | c.220 | Theology and metaphysics | Search | C | K | 535 | ||||
| Otto, Rudolf | 1869-1937 | Idea of the Holy, The | 1917 | Philosophy of religion | Search | C | 1711 | |||||
| Paley, William | 1743-1805 | View of the Evidences of Christianity, A | 1794 | Theology | Search | 1189 | ||||||
| Parker, De Witt Henry | 1885-1949 | Experience and Substance | 1941 | Metaphysics, value theory | Search | 2248 | ||||||
| Parmenides of Elea | c.515-c.456 B.C. | Way of Truth, The and Way of Opinion, The | 5th cent. B.C. | Metaphysics | Search | 42 | ||||||
| Pascal, Blaise | 1623-1662 | Pensees | 1670 | Theology | Search | C | 30 | 874 | ||||
| Peirce, Charles Sanders | 1839-1914 | Collected Papers (eight volumes) | 1931-1958 | Logic, epistemology, metaphysics | Search | 2001 | ||||||
| Perry, Ralph Barton | 1876-1957 | General Theory of Value | 1926 | Ethics | Search | 1846 | ||||||
| Plato | 427-347 B.C. | Apology | early | Ethics | Search | 6 | 147 | |||||
| Plato | 427-347 B.C. | Crito | early | Ethics | Search | 6 | 169 | |||||
| Plato | 427-347 B.C. | Euthyphro | early | Ethics, philosophy of religion | Search | 6 | 159 | |||||
| Plato | 427-347 B.C. | Gorgias | early | Philosophy of rhetoric; ethics | Search | 6 | 200 | |||||
| Plato | 427-347 B.C. | Laws | last | Political philosophy | Search | 6 | 318 | |||||
| Plato | 427-347 B.C. | Meno | early | Metaphysics | Search | 6 | 189 | |||||
| Plato | 427-347 B.C. | Parmenides | later | Epistemology | Search | 6 | 270 | |||||
| Plato | 427-347 B.C. | Phaedo | midle | Metaphysics | Search | 6 | 221 | |||||
| Plato | 427-347 B.C. | Phaedrus | middle | Metaphysics, philosophy of love, philosophy of rhetoric | Search | 6 | 245 | |||||
| Plato | 427-347 B.C. | Philebus | later | Ethics, metaphysics | Search | 299 | ||||||
| Plato | 427-347 B.C. | Protagoras | early | Ethics, epistemology | Search | 179 | ||||||
| Plato | 427-347 B.C. | Republic | middle | Political philosophy, metaphysics, epistemology | Search | 3 | 6 | 233 | ||||
| Plato | 427-347 B.C. | Sophist | later | Epistemology, metaphysics | Search | 6 | 280 | |||||
| Plato | 427-347 B.C. | Statesman | after Republic; before Laws | Political philosophy | Search | 6 | 290 | |||||
| Plato | 427-347 B.C. | Symposium | middle | Metaphysics, philosophy of love | Search | 6 | 208 | |||||
| Plato | 427-347 B.C. | Theaetetus, | middle | Epistemology | Search | 6 | 255 | |||||
| Plato | 427-347 B.C. | Timaeus | later | Cosmogony, cosmology | Search | 6 | 308 | |||||
| Plotinus | c.204-c.270 | Enneads | c.256 | Metaphysics | Search | 11 | 547 | |||||
| Popper, Karl R. | Logic of Scientific Discovery, The (Logik der Forschung) | 1935 | Search | 2091 | ||||||||
| Popper, Karl R. | Open Society and Its Enemies, The | 1962 | Search | 2311 | ||||||||
| Pratt, James Bissett | 1875-1944 | Personal Realism | 1937 | Epistemology | Search | 2138 | ||||||
| Price, Henry Habberley | 1899- | Perception | 1932 | Epistemology | Search | 2033 | ||||||
| Protagoras of Abdera | On Truth and On the Gods | Search | 83 | |||||||||
| Quine, W.V.O. | 1908-2000 | Word and Object | 1960 | Search | 2490 | |||||||
| Radhakrishnan, Sarvepalli | 1888- | Idealist View of Life, An | 1932 | Ethics, metaphysics | Search | 2044 | ||||||
| Rawls, John | Theory of Justice, A | 1971 | Search | 2524 | ||||||||
| Reid, Thomas | 1710-1796 | Essay on the Active Powers of the Human Mind | 1788 | Epistemology, ethics, philosophy of mind | Search | 1142 | ||||||
| Reid, Thomas | 1710-1796 | Essay on the Intellectnal Powers of Man | 1785 | Epistemology, ethics, philosophy of mind | Search | 1142 | ||||||
| Richards, I.A | Meaning of Meaning, The | Search | 1813 | |||||||||
| Ross, W. David | 1877- | Right and the Good, The | 1930 | Ethics | Search | 1957 | ||||||
| Rousseau, Jean Jacques | 1712-1778 | Social Contract, The | 1762 | Social philosophy | Search | 35 | 1082 | |||||
| Royce, Josiah | 1855-1916 | World and the Individual, The | 1900-1901 | Search | 1560 | |||||||
| Russell, Bertrand | 1872-1970 | Inquiry into Meaning and Truth, An | 1940 | Epistemology | Search | 2210 | ||||||
| Russell, Bertrand | 1872-1970 | Introduction to Mathematical Philosophy | 1919 | Philosophy of mathematics | Search | 1722 | ||||||
| Russell, Bertrand | 1872-1970 | Our Knowledge of the External World | 1914 | Epistemology, metaphysics | Search | 1691 | ||||||
| Ryle, Gilbert | 1900- | Concept of Mind, The | 1949 | Philosophy of mind | Search | 2347 | ||||||
| Sankara (or Shankara, Samkara, Sankaracharya) | c.788-c.820 | Crest Jewel of Wisdom | ? | Metaphysics | Search | 600 | ||||||
| Santayana, George | 1863- | Llfe of Reason, The | 1905-1906 | Search | 1605 | |||||||
| Santayana, George | 1863-1952 | Realms of Being | Metaphysics | Search | 1885 | |||||||
| Santayana, George | 1863-1952 | Realms of Essence | 1927 | Metaphysics | Search | 1885 | ||||||
| Santayana, George | 1863-1952 | Realms of Matter | 1930 | Metaphysics | Search | 1885 | ||||||
| Santayana, George | 1863-1952 | Realms of Spirit | 1940 | Metaphysics | Search | 1885 | ||||||
| Santayana, George | 1863-1952 | Realms of Truth | 1938 | Metaphysics | Search | 1885 | ||||||
| Santayana, George | 1863-1952 | Sense of Beauty, The | 1896 | Search | 1516 | |||||||
| Sartre, Jean-Paul | 1905- | Being and Nothingness | 1943 | Existential metaphysics | Search | 2270 | ||||||
| Schlick, Moritz | 1882-1936 | Problems of Ethics | 1930 | Ethics | Search | 1968 | ||||||
| Schopenhauer, Arthur | 1788-1860 | World as Will and Idea, The | 1818 | Metaphysics | Search | 3 | 1236 | |||||
| Sellars, Roy Wood | 1880- | Philosophy of Physical Realism, The | 1932 | Epistemology and metaphysics | Search | 2056 | ||||||
| Sextus Empiricus | 2nd-3rd cent. | Outlines of Pyrrhonism | 3rd cent. | Skeptical criticism | Search | 524 | ||||||
| Shaaftsbury, Earl of, Anthony Aashley Cooper | 1671-1713 | Characteristics | 1711 | Ethics | Search | 968 | ||||||
| Sharp, Frank Chapman | 1866-1943 | Ethics | 1928 | Ethics | Search | 1898 | ||||||
| Sidgwick, Henry | 1838-1900 | Methods of Ethics, The | 1874 | Ethics | Search | 1406 | ||||||
| Smith, Adam | 1723-1790 | Theory of Moral Sentiments | 1759 | Ethics | Search | 1071 | ||||||
| Spencer, Herbert | 1820-1903 | First Principles | 1862 | Philosophy of nature | Search | 1363 | ||||||
| Spinoza, Benedictus De | 1632-1677 | Ethics | 1677 | Ethics, theology | Search | 3 | 28 | 886 | ||||
| Stevenson, Charles Leslie | 1908- | Ethics and Language | 1944 | Ethics | Search | 2287 | ||||||
| Suzuki, Daisetz T. | 1870- | Zen Buddhism | 1949-1955 | Metaphysics, ethics | Search | 2359 | ||||||
| Tillich, Paul | 1886- | Courage to Be, The | 1952 | Ontology, ethics | Search | 2432 | ||||||
| Tillich, Paul | 1886- | Systematic Theology | 1951 | Theology | Search | C | 2416 | |||||
| Tolstoy, Count Leo | 1828-1910 | What Is Art? | 1896 | Search | 1527 | |||||||
| Toulmin, Stephen Edelston | 1922- | Place of Reason in Ethics, The | 1950 | Search | 2382 | |||||||
| Tseng tzu or Tzu Ssu | Great Learning, The | 1st cent. B.C. | Ethics, political philosophy | Search | 484 | |||||||
| Unknown | Bhagaavad Gita | Search | 124 | |||||||||
| Unknown | Chung Yung | Search | 95 | |||||||||
| Unknown | I Ching | Search | 103 | |||||||||
| Unknown | Tao Te Ching | 3rd cent. B.C. | Metaphysics, ethics, political philosophy | Search | 473 | |||||||
| Vico, Giovanni Battista | 1668-1744 | New Science, The | 1725, 1744 | Philosophy of history | Search | K | 1014 | |||||
| Whitehead, Alfred North | 1861-1947 | Process and Reality | 1929 | Metaphysics | Search | 1944 | ||||||
| William of Ockham | c.1280-c.1350 | William of Ockham: Selections | 14th cent. | Logic, epistemology | Search | 731 | ||||||
| Wisdom, John | 1904- | Philosophy and Psycho-Analysis | 1953 | Philosophy of philosophy | Search | 2455 | ||||||
| Wittgenstein, Ludwig | 1889-1951 | Philosophical Investigations | 1953 | Philosophy of philosophy, philosophy of language | Search | 55 | 2466 | |||||
| Wittgenstein, Ludwig | 1889-1951 | Tractatus Logico-Philosophicus, | 1921 | Logic, philosophy of philosophy | Search | 1748 | ||||||
| Woodbridge, Frederick James | 1867-1940 | Nature and Mind | 1937 | Metaphysics, epistemology | Search | 2149 | ||||||
| Zeno of Elea | Paradoxes of Zeno | Search | 72 |