Patience is the companion of wisdom.
A prudent question is one-half of wisdom.
By three methods we may learn wisdom: First, by reflection, which is noblest; Second, by imitation, which is easiest; and third by experience, which is the bitterest.
Every man is a damn fool for at least five minutes every day; wisdom consists in not exceeding the limit.
We are made wise not by the recollection of our past, but by the responsibility for our future.
George Bernard Shaw