"Learn from the mistakes of others--you can never live long enough to make them all yourself."
(John Luther)

"Men are wise in proportion, not to their experience, but to their capacity for experience."
(George Bernard Shaw)

"No, that is the great fallacy; the wisdom of old men. They do not grow wise. They grow careful."
(Ernest Hemingway, A Farewell To Arms)

"The key to wisdom is knowing all the right questions."
(John A. Simone Jr.)

"The want of logic annoys. Too much logic bores. Life eludes logic, and everything that logic alone constructs remains artificial and forced."
(André Gide)

"There is only one thing more painful than learning from experience and that is not learning from experience."
(Archibald McLeish)

"To make a living, craftiness is better than learnedness."
(Pierre-Augustin de Beaumarchais)