He who hid well, lived well. - René Descartes

"Instead of René Descartes' famous "Cogito ergo sum" (I think, therefore I am), I propose "Communico ergo sum," (I communicate, therefore I exist") as the philosophical proof of man's existence.

engaging in conversation with the most cultivated minds of past centuries who had composed them, or rather, taking part in a well-conducted dialogue in which such minds reveal to us only the best of their thoughts;

«Y no me precio tampoco de ser el primer inventor de mis opiniones, sino solamente de no haberlas admitido ni porque las dijeran otros ni porque no las dijeran, sino sólo porque la razón me convenció de su verdad.»