Victor Hugo,
Les Misérables — Volume 3, Book Seventh…
“ Destroy the cavern Ignorance and you destroy the lair Crime.Let us condense, in a few words, a part of what we have just written. The only social peril is darkness.Humanity is identity. All men are made of the same clay. There is no difference, here below, at least, in predestination. The same shadow in front, the same flesh in the present, the same ashes afterwards. But ignorance, mingled with the human paste, blackens it. This incurable blackness takes possession of the interior of a man and is there converted into evil. ”
