Rene Descartes, (1596-1650) French philosopher, mathematician, scientist, lay Catholic who invented analytic geometry Share on Facebook Share on Twitter Comment on this quote Share via Email Print this Page [1-2] of 2 Rene Descartes quotesRene Descartes QuotesRene Descartes If you would be a real seeker after truth, it is necessary that at least once in your life you doubt, as far as possible, all things.~ Rene Descartes Each problem that I solved became a rule which served afterwards to solve other problems.~ Rene Descartes Share on Facebook Tweet Email Print