"Study hard what interests you the most in the most undisciplined, irreverent and original manner possible."
— Richard P. Feynman

"You live and learn. At any rate, you live."
— Douglas Adams

"Let's think the unthinkable, let's do the undoable, let's prepare to grapple with the ineffable itself, and see if we may not eff it after all."
— Douglas Adams

"It's not worth doing something unless someone, somewhere, would much rather you weren't doing it."
— Terry Pratchett

"If you have enough book space, I don't want to talk to you."
— Terry Pratchett

"You build on failure. You use it as a stepping stone. Close the door on the past. You don't try to forget the mistakes, but you don't dwell on it. You don't let it have any of your energy, or any of your time, or any of your space.
"
— Johnny Cash

"I can think of few better ways to introduce a child to books than to let her stack them, upend them, rearrange them, and get her fingerprints all over them."
— Anne Fadiman (Ex Libris: Confessions of a Common Reader)

"Reputation is what other people know about you. Honor is what you know about yourself."
— Lois McMaster Bujold (A Civil Campaign)