This classic work, first published in 1912, has never been supplanted as an approachable introduction to the theory of philosophical enquiry. It gives Russell's views on such subjects as the distinction between appearance and reality, the existence and nature of matter, idealism, knowledge by acquaintance and by description, induction, truth and falsehood, the distinction between knowledge, error and probable opinion, and the limits and value of philosophical§knowledge. sakriti opis