... camps. First, he was an unpaid volunteer in the army of the Protestant Prince of Orange; later he served in the army of the CatholicDuke Maximilian of Bavaria, who was then at war with the Palatine ... Wrst ma jor work, On the Shadows of Ideas, combined an elaborateNeoplatonic metaphysical system with practical advice on the art of mem-ory. There is a hierarchy of ideas with human ideas at the ... practical application of physics, and magic is the practical application of metaphysics.This brisk and provocative anatomy of philosophy is not as neat as itseems, and many of the names Bacon...