Bertrand Russell (1872-1970). The leading British Philosopher of the twentieth century, who made major contributions to the area of logic and epistemology. Politically active and habitually outspoken, his ethical principles twice lead to imprisonment.

Introduction 1. Philosophical Doubts Part 1: Man from Without 2. Man and his Environment 3. The Process of Learning in Animals and Infants 4. Language 5. Perception Objectively Regarded 6 . Memory Objectively Regarded 7. Inference as Habit 8. Part 2: The Physical World 9. The Structure of the Atom 10. Relativity 11. Causal Laws in Physics 12. Physics and Perception 13. Physical and Perceptual Space 14. Perception and Physical Causal Laws 15. The Nature of our Knowledge of Physics Part 3: Man from Within 16. Self-observation 17. Images 18. Imagination and Memory 19. The Introspective Analysis of Perception 20. Consciousness? 21. Emotion, Desire, and Will 22. Ethics Part 4: The Universe 23. Some Great Philosophers of the Past 24. Truth and Falsehood 25. The Validity of Inference 26. Events, Matter, and Mind 27. Man's Place in the Universe Index