In this book, modern scientists and philosophers of science confront the prophetic legacy of the 17th century philosopher Leibniz—a metaphysical agenda full of ideas presaging today’s state of the art research into relativity and quantum cosmology; the physics of force, mass, momentum, time and space; complexity and chaos theories; fundamental particles and multiple worlds; and of the electronic cosmos of our computer era. Their immense relevance to us is demonstrated by the engagement with them of over 200 present-day scientific minds. In essence this monograph comprises a survey and critical comparison of interlocking texts, and will serve philosophers as a gateway into fundamental science from the angle of metaphysics, as well as scientists as a documentation of Leibniz’s profound philosophical impact on their own fields.