This is the 5th volume in the series of popular, small volumes by the well-known philosophy Professor Kreeft in which the "Father of Philosophy," Socrates, cross-examines various other important philosophers and thinkers (previous books examined Marx, Sarte, Machiavelli, and Socrates himself.) In this work, he states that Socrates and Descartes are probably the two most important philosophers who have ever lived, because they are the two who made the most difference to all philosophy after them. The two of them stand at the beginning of the two basic philosophical options: the classical and the modern. Kreeft focuses on seven features that unite these two major philosophers and distinguish them from all others. So this dialog between Socrates and Descartes is a dialog between the fundamental stages in the history of philosophy, the history of consciousness, and the history of Western culture.