A comprehensive update of the best-selling first edition, this revitalized new text presents readers with a series of clear, well-written entries focusing on fifty of the most influential philosophers from the last two thousand years.

Diané Collinson was formerly Senior Lecturer and Staff Tutor in Philosophy at the Open University. She is a co-author of Fifty Eastern Thinkers and 100 Twentieth-Century Philosophers.

Kathryn Plant teaches at Cardiff University and is a co-author of Fifty Eastern Thinkers.

Thales Pythagoras Heraclitus Parmenides Zeno Socrates Democritus Plato Aristotle Plotinus Augustine Maimonides Aquinas Duns Scotus Ockham Machiavelli Bacon Galileo Hobbes Descartes Spinoza Locke Leibniz Berkeley Hume Rousseau Kant Bentham Hegel Schopenhauer Mill Kierkegaard Marx Peirce James Nietzsche Frege Husserl Russell Moore Wittgenstein Collingwood Heidegger Popper Quine Merleau-Ponty Ayer Rawls Sartre Glossary