"All that I know I learned after I was thirty."

"Information's pretty thin stuff unless mixed with experience."

"What one has not experienced, one will never understand in print."

"Experience keeps a dear school, but fools will learn in no other."

"Everything has been said before, but since nobody listens we have to keep going back and beginning all over again."

"Experience is not what happens to you; it is what you do with what happens to you."

"If you can learn from hard knocks, you can also learn from soft touches."

"Life must be understood backwards. But it must be lived forward."

"You couldn't get hold of the things you'd done and turn them right again. Such a power might be given to the gods, but it was not given to women and men, and that was probably a good thing.

"Experiences are savings which a miser puts aside. Wisdom is an inheritance which a wastrel cannot exhaust."