G. W. Leibniz (1646-1716) was one of the great polymaths of the modern world. As well as being among the greatest Rationalist metaphysicians of the post-medieval age, he built the first mechanical calculator capable of multiplication and division, and developed the binary, base-two system. As a physicist, he made advances in mechanics, coining the term "kinetic energy." As a mathematician, Leibniz invented calculus independently of Newton, and it is his notation, not Newton's, which is used to this day. Perhaps best known for the atomic concept of the monad, Leibniz also made outstanding...