The texts of this book are concerned with Gustav Bergmanns open and new problems and their active role on issues in contemporary metaphysics, like the ontology of ties, connections and relations; problems of exemplification; substrates and tropes; theories, particulars, persistence; and the metaphysics of space, time, and existence. The purpose of the book is to provide some understanding of his central interests, but also to show the evolution of the actual scope of his thought.