This book describes a realist, fallibilist alternative when intuitionism and its psychocentric ontology are rejected. Weissman proposes an agenda for metaphysical inquiry and also a method for testing metaphysical claims. Arguing that science and metaphysics are successive refinements of the maps and plans used in practical life, he affirms that metaphysics is to complete our self-understanding by locating us within a world we have not made.

This book is a sequel to Intuition and Ideality which surveys the many versions of intuitionism--intuitionism as it prescribes that reality be identified with mind itself or with the things set before our inspecting mind.