It has been said, and may well be true, that Leibniz is the smartest person who ever lived. And there is no question but that he ranks high among mankinds small number of universal geniuses who made strikingly original contributions in every then-existing field of learning. The studies that are brought together here are new and heretofore unpublished investigations of various prominent and characteristic ideas in Leibnizs philosophy. They contribute new pieces to the virtually unending panorama that constitutes our understanding of Leibnizs multifaceted thought.