"Teach the ignorant as much as you can; society is culpable in not providing a free education for all and it must answer for the night which it produces. If the soul is left in darkness sins will be committed. The guilty one is not he who commits the sin, but he who causes the darkness."
"Un sceptique qui adhère à un croyant cela est simple comme la loi des couleurs complémentaires.Ce qui nous manque nous attire."
"Yes, the brutalities of progress are called revolutions. When they are over, this is recognised: that the human race has been harshly treated, but that it has advanced."
"He never went out without a book under his arm, and he often came back with two."
"À ceux qui ignorent, enseignez-leur [...]Le coupable n'est pas celui qui y fait le péché, mais celui qui y a fait l'ombre."
"There is one spectacle grander than the sea, that is the sky; there is one spectacle grander than the sky, that is the interior of the soul."