Better be wise by the misfortunes of others than by your own.

Better be wise by the misfortunes of others than by your own.

A man only becomes wise when he begins to calculate the approximate depth of his ignorance.

A man only becomes wise when he begins to calculate the approximate depth of his ignorance.

Great men are not always wise: neither do the aged understand
judgment.

Great men are not always wise: neither do the aged understand
judgment.

Knowledge is knowing a tomato is a fruit; wisdom is not putting it in a fruit salad.

Knowledge is knowing a tomato is a fruit; wisdom is not putting it in a fruit salad.

The key to wisdom is knowing all the right questions.

The key to wisdom is knowing all the right questions.

Peace is a fragile thing. It takes courage to secure it. It takes wisdom to maintain it.

Peace is a fragile thing. It takes courage to secure it. It takes wisdom to maintain it.

Wisdom prepares for the worst, but folly leaves the worst for the day when it comes.

Wisdom prepares for the worst, but folly leaves the worst for the day when it comes.

Every indication of wisdom, taken from the effect, is equally an indication of power to execute what wisdom planned.

Every indication of wisdom, taken from the effect, is equally an indication of power to execute what wisdom planned.

A fool thinks himself to be wise, but a wise man knows himself to be a fool.

A fool thinks himself to be wise, but a wise man knows himself to be a fool.