"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."
"Should we continue to look upwards? Is the light we can see in the sky one of those which will presently be extinguished? The ideal is terrifying to behold... brilliant but threatened on all sides by the dark forces that surround it: nevertheless, no more in danger than a star in the jaws of the clouds."
"Equality, citizens, is not the whole of society on a level, a society of tall blades of grass and small oaks, or a number of entangled jealousies. It is, legally speaking, every aptitude having the same opportunity for a career; politically all consciences having the same right. Equality has an organ, gratuitous and compulsory education. We must begin with the right to the alphabet."
"He never went out without a book under his arm, and he often came back with two."
"where the telescope ends the microscope begins, and who can say which has the wider vision?"
"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."