"In the course of a life of ninety years Sir Karl can look back on positive changes in the world - the vast reductions in mass poverty, the liberalization of penal systems, the defeat of dictatorships. The search for a better world is never complete, but in spite of two world wars and a long and dangerous cold war, it was not in vain." "The essays and lectures collected in this book chart many familiar as well as some less known aspects of Sir Karl's...