Harre shows how various views about the nature of science are related to the great historical schools of philosophy. He sets out his argument in terms of concrete episodes in the history of science. This new edition includes a chapter on science and society, which explores issues such as the morality of experimentation on live animals and the premise that knowledge is a basis for moral good. Harre also examines the theory that science is a form of art, and looks at the way scientific knowledge affects out religious beliefs.