Starting with brief biographies of the great philosophers, including Socrates, Plato, Aristotle and Descartes in part one, and moving through other forms and ways of thinking this book is a nice introduction to the world of philosophy.

Also included are discussions of the Supreme Good, with a contemplation of Aristotle's ethics; the Universal Mind, including Spinoza's concept of mind; and essays on subjects like logic, universes, repetition and variation in infinity and a philosophy of substance.