Bertrand Russell's classic review of issues confronting modern philosophy. Topics discussed include:Appearance and Reality, The Existence of Matter, The Nature of Matter, Idealism, Knowledge by Acquaintance and Knowledge by Description, On Induction, On Our Knowledge of General Principles, How a Priori Knowledge is Possible, The World of Universals, On Our Knowledge of Universals, On Intuitive Knowledge, Truth and Falsehood, Knowledge, Error, and Probable Opinion, The Limits of Philosophical Knowledge, and The Value of Philosophy.