�The selections are well chosen . . . the Introduction and headnotes are extremely clear and well written . . . appropriately pegged for a very introductory audience.�

--Steven Gerrard, Williams College

Hackett Publishing Company Web Site, August, 2000

PLATO, �Knowledge and Opinion,� from Republic
AUGUSTINE, �Three Things True and Certain,� from City of God
AQUINAS, �Whether Faith is More Certain than Science . . . ?� from Summa Theologica
DESCARTES, Meditations I, II, VI, from Meditations
LEIBNIZ, �On the Method of Distinguishing Real from Imaginary Phenomena�
HUME, �Of the Academical or Sceptical Philosophy,� from Enquiry Concerning Human Understanding
REID, �Reflections on the Common Theory of Ideas,� from Essays on the Intellectual Powers of Man
HUSSERL, �First Meditation: the Way to the Transcendental Ego,� from Cartesian Meditations
MOORE, �Certainty,� from Philosophical Papers
WITTGENSTEIN, �On Certainty,� from On Certainty
REICHENBACH, �The Search for Certainty and the Rationalistic Conception of Knowledge,� from The Rise of Scientific Philosophy
MALCOLM, �Do I Know I Am Awake?� from Dreaming
BOUWSMA, �Descartes� Evil Genius,� from Philosophical Essays
SMULLYAN, �Dream or Reality,� from 5000 B.C. and Other Philosophical Fantasies
OCTAVIO PAZ, �Certainty,� a poem from Configurations

Suggested Further Readings.