"By three methods we may learn wisdom: first, by reflection, which is noblest; se..."

"Knowing yourself is the beginning of all wisdom."

"The only thing I know is that I know nothing."

"It is the mark of an educated mind to be able to entertain a thought without acc..."

"The only true wisdom is in knowing you know nothing."

"Patience is the companion of wisdom."

"Silence is a source of great strength."

"A wise man can learn more from a foolish question than a fool can learn from a w..."