Timothy Sprigge has been a major player on the philosophical scene contributing to discussions as diverse as consciousness, the ontology of time, personal identity, animal rights, punishment, censorship and wider issues in metaphysics, ethics and the history of philosophy. He is, however, less well known for his own highly original system of metaphysics and ethics'a synthesis of Absolute Idealism, panpsychism and utilitarianism. The contributions gathered in this volume, written by philosophers of international reputation or by acknowledged scholars in their specialized fields of inquiry, engage themes in his metaphysics and ethics and provide a critical assessment of his ideas and arguments. In a concluding essay, Sprigge answers the most significant objections raised by his critics: the final result is an engaging dialogue on the perennial and most fundamental questions of philosophy.