Which is the greater merit, to enlighten the human race, which remains forever, or to save one's fatherland, which is perishable?
Denis DiderotThere is only one virtue, justice; only one duty, to be happy; only one corollary, not to overvalue life and not to fear death.
Denis DiderotThe first promise exchanged by two beings of flesh was at the foot of a rock that was crumbling into dust; they took as witness for their constancy a sky that is not the same for a single instant; everything changed in them and around them, and they believed their hearts free of vicissitudes. O children! always children!
Denis Diderot