Abstract

When asked why he turned from philosophy to the history of ideas, Isaiah Berlin said that he was worried that if he stayed in philosophy he wouldn't know any more at the end of his life than he had at the beginning. Mark Lilla makes the point in a somewhat more constructive way: "His [Berlin's] instinct told him that you learn more about an idea as an idea when you know something about its genesis and understand why certain people found it compelling and were spurred to action by it".It took me decades longer than the brilliant Oxford don to appreciate the point, but when I did it came as a lightning strike of recognition. My brain seems to have been keyed from the beginning in the syntax of...