When John Dewey died in 1952, he was memorialized as America's most famous philosopher, revered by liberal educators and deplored by conservatives, but universally acknowledged as his country's intellectual voice. Many things conspired to give Dewey an extraordinary intellectual eminence: He was immensely long-lived and immensely prolific; he died in his ninety-third year, and his intellectual productivity hardly slackened until his eighties. Professor...