The author of Human Knowledge and History of Western Philosophy here- in six lectures given over BBC in 1948-49 -- analyzes, discusses and offers his solutions relating to the struggle between the degree of individual initiative necessary for progress, and the degree of social cohesion necessary for survival. He searches for the impulses in human nature which make social cohesion in varying times and places, with a glimpse into the future. He explores the role of individuality, the conflict between techniques and human nature. He examines the respective spheres of control and initiative. He considers ""as a matter of ethics the whole relation of individual thought and effort and imagination, to the authority of the community""... Broad in scope, provocative of thought, terse in treatment. The reader appeal is limited by the intelligence quotient of the individual. But the market is widened by a certain intellectual snob appeal which Bertrand Russell satisfies.