Cover -- Copyright Page -- Very Short Introduction -- Title Page -- Contents -- List of Illustrations -- List of Maps -- 1 The Man and His Work -- 2 A Public Figure -- 3 Zoological Researches -- 4 Collecting Facts -- 5 The Philosophical Background -- 6 The Structure of the Sciences -- 7 Logic -- 8 Knowledge -- 9 Ideal and Achievement -- 10 Reality -- 11 Change -- 12 Causes -- 13 Empiricism -- 14 Aristotle's World-Picture -- 15 Psychology -- 16 Evidence and Theory -- 17 Teleology -- 18 Practical Philosophy -- 19 The Arts -- 20 Afterlife -- References -- Chronological Table -- Further Reading -- Index.