"In Search of a Better World is a collection of Popper's essays and lectures covering a range of subjects from the beginning of scientific speculation in classical Greece to the need for a new professional ethic based on the ideas of tolerance and intellectual responsibility. Popper discusses major figures of the Enlightenment sucha s Voiltaire and Kant, as well as logic of the social sciences and the role of science and self-criticism in the arts."--Back cover.