In this program, world-renowned author and professor Bryan Magee and contemporary philosopher Peter Singer discuss rational Hegelian philosophy, and the historicism and organicism at its root. Hegel’s theories of absolute idealism and of a dialectic emphasize history in their development of a model of reality. His concept of this reality as ultimately spiritual, and of philosophy as organic and constantly changing, is examined. The theories of Karl Marx are discussed as essentially Hegelian, but with a practical, economic spin. A BBC Production. Part of the series Great Philosophers.