: Why does Descartes insist there is no analogy between walking and thinking? Descartes addresses the modern philosophy by analyzing the means by which it is appropriate to distinguish between the modern philosophies from the medieval philosophy. According to Descartes the medieval philosophy had always been characterized by the use of the platonic and the Aristotelian philosophies and this was in the characterization of the biblical revelation. The modern science is a philosophy of the manifesto that bears the spirit that has given rise to the science that began in the refinance hence the resemblance of the method. Descartes philosophy is based upon the principal of his discourse on the method and the meditation on the first philosophy (Bob, 2006).