This book discusses the problems raised by Whitehead's metaphysics of creativity--metaphysics focused on dynamic becoming rather than on static being--and the proposed solutions to those problems. Whitehead adds a new dimension to the issues of traditional metaphysics by taking into account the world view of our civilization and the results of modern science. His all-embracing speculative cosmology provides a synthesis which goes far beyond the details considered in modern analytic philosophy. To him, the principle of novelty is the universal of universals, and in his system of categories, he aims at avoiding the bifurcation of nature into a physical and mental pole.