Derek Parfit hit the philosophy firmament in the early 1960s, while Karl Popper arrived on the Vienna scene three decades earlier. David Edmonds' biography of Parfit provides a careful and detailed account of Parfit's main philosophical preoccupations and some details about his life in Parfit: A Philosopher and His Mission to Save Morality. Popper's autobiographical essay in Paul Arthur Schilpp, The Philosophy of Karl PopperPart I and Part II (published separately as An Unended Quest) offers ...