IM Rene Descartes 11 Feb 1650

I think, therefore I am. 'Cogito, ergo sum' -- Rene Descartes 1596-1650: Le Discours de la methode

If you would be a real seeker after truth, you must at least once in your life doubt, as far as possible, all things.-- Rene Descartes, Discours de la Me'thode, 1637

Nothing is more fairly distributed than common sense: no one thinks he needs more of it than he already has.--Descartes