[About Pierre de Fermat] It cannot be denied that he has had many exceptional ideas, and that he is a highly intelligent man. For my part, however, I have always been taught to take a broad overview of things, in order to be able to deduce from them general rules, which might be applicable elsewhere.
Rene DescartesEverybody thinks himself so well supplied with common sense that even those most difficult to please. . . never desire more of it than they already have.
Rene DescartesCommon sense is the most widely shared commodity in the world, for every man is convinced that he is well supplied with it.
Rene Descartes