"_Le bon sens est la chose du monde la mieux partagée_." Thus begins the _Discourse of Method_, and this good sense saved him. He continues talking about himself, about the man Descartes, telling us among other things that he greatly esteemed eloquence and loved poetry; that he delighted above all in mathematics because of the evidence and certainty of its reasons, and that he revered our theology and claimed as much as any to attain to heaven--_et prétendais autant qu'aucun autre à gagner le ciel_. And this pretension--a very laudable one, I think, and above all very natural--was what prevented him from deducing all the consequences of his methodical doubt. The man Descartes claimed, as much as any other, to attain to heaven, "but having learned as a thing very sure that the way to it is not less open to the most ignorant than to the most learned, and that the revealed truths which lead thither are beyond our intelligence, I did not dare submit them to my feeble reasonings, and I thought that to undertake to examine them and to succeed therein, I should want some extraordinary help from heaven and need to be more than man." And here we have the man. Here we have the man who "did not feel obliged, thank God, to make a profession (_métier_) of science in order to increase his means, and who did not pretend to play the cynic and despise glory." And afterwards he tells us how he was compelled to make a sojourn in Germany, and there, shut up in a stove (_poêle_) he began to philosophize his method. But in Germany, shut up in a stove! And such his discourse is, a stove-discourse, and the stove a German one, although the philosopher shut up in it was a Frenchman who proposed to himself to attain to heaven. And he arrives at the _cogito ergo sum_, which St. Augustine had already anticipated; but the _ego_ implicit in this enthymeme, _ego cogito, ergo ego sum_, is an unreal--that is, an ideal--_ego_ or I, and its _sum_, its existence, something unreal also. "I think, therefore I am," can only mean "I think, therefore I am a thinker"; this being of the "I am," which is deduced from "I think," is merely a knowing; this being is knowledge, but not life. And the primary reality is not that I think, but that I live, for those also live who do not think. Although this living may not be a real living. God! what contradictions when we seek to join in wedlock life and reason!