Socrates and Descartes are probably the two most important philosophers who ever lived, because they are the two who made the most difference to all philosophy after them. Socrates is often called “the Father of Philosophy” and Descartes is called “the Father of Modern Philosophy”. The two of them stand at the beginning of the two basic philosophical options: the classical and the modern. At least seven features unite these two philosophers and distinguish them from all others. First,