Leslie Stevenson is reader in logic and metaphysics at the University of St. Andrews in Fife, Scotland. He is the author of Seven Theories of Human Nature, The Metaphysics of Experience, and many articles on language, mind, and science. Henry Byerly is professor of philosophy at the University of Arizona. He is the author of A Primer of Logic and has published many articles on biology as well as on the philosophy of science. Leslie Stevenson is reader in logic and metaphysics at the University of St. Andrews in Fife, Scotland. He is the author of Seven Theories of Human Nature, The Metaphysics of Experience, and many articles on language, mind, and science. Henry Byerly is professor of philosophy at the University of Arizona. He is the author of A Primer of Logic and has published many articles on biology as well as on the philosophy of science.

• Preface -- Preface to the Second Edition -- Introduction -- How Science as We Know It Has Developed -- Images of Science -- What Motivates Scientists? -- Intellectual Curiosity: Mathematical Patterns in Nature -- Intellectual Curiosity: Experiment -- Scientific Reputation, Scientific Influence, and Public Fame -- The Utility of Science -- Science and Money -- Scientists and the Totalitarian State -- Scientists and Public Policy -- Science Applied to Human Beings -- Science and Values