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.

Does wisdom perhaps appear on the earth as a raven which is inspired by the smell of carrion?

Every man is a damn fool for at least five minutes every day; wisdom consists in not exceeding the limit.

It is astonishing with how little wisdom mankind can be governed, when that little wisdom is its own.