"The fool doth think he is wise, but the wise man knows himself to be a fool."

"Knowing yourself is the beginning of all wisdom."

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

"Judge a man by his questions rather than his answers."

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

"Science is organized knowledge. Wisdom is organized life."

"To know what you know and what you do not know, that is true knowledge."

"It is not that I'm so smart. But I stay with the questions much longer."