Includes index.

Pre-Socratic -- Socrates (469-399 B.C.) -- Plato (429-347 B.C.) -- Existentialism -- Aristotle (384-322 B.C.) -- The ship of Theseus -- Francis Bacon (1561-1626) -- The cow in the field -- David Hume (1711-1776) -- Hedonism -- Prisoner's dilemma -- St. Thomas Aquinas (1225-1274) -- Hard determinism -- Jean-Jacques Rousseau (1712-1778) -- The trolley problem -- Realism -- Immanuel Kant (1724-1804) -- Dualism -- Utilitarianism -- John Locke (1632-1704) -- Empiricism versus Rationalism -- Georg Wilhelm Friedrich Hegel (1770-1831) -- René Descartes (1596-1650) -- A-Theory -- The liar paradox -- Thomas Hobbes (1588-1679) -- Philosophy of language -- Metaphysics -- Jean-Paul Sartre (1905-1980) -- Free will -- Philosophy of humor -- The Enlightenment -- Friedrich Nietzsche (1844-1900) -- The Sorites paradox -- Ludwig Wittgenstein (1889-1951) -- Aesthetics -- Philosoph of culture -- Epistemology -- Twin Earth -- Arthur Schopenhauer (1788-1860) -- Karl Marx (1818-1883) -- Martin Heidegger (1889-1976) -- Voltaire (1694-1778) -- Relativism -- Eastern philosophy -- Avicenna (980-1037) -- Bertrand Russell (1872-1970) -- Phenomenology -- Nominalism -- Gottfried Wilhelm Leibniz (1646-1716) -- Ethics -- Philosophy of science -- Baruch Spinoza (1632-1677) -- Philosopy of religion.