“A house without books is like a room without windows.”

“No man has the right to bring up children without surrounding them with books.”

“Give me a house furnished with books rather than furniture! Both, if you can, but books at any rate!”

“A teacher who is attempting to teach without inspiring the pupil with a desire to learn is hammering on cold iron.”

“Lost, yesterday, somewhere between sunrise and sunset, two golden hours, each set with sixty diamond minutes. No reward is offered for they are gone forever.”

“Do not think of knocking out another person's brains because he differs in opinion from you. It would be as rational to knock yourself on the head because you differ from yourself ten years ago.”

“Be ashamed to die until you have won some victory for humanity.”