The man who asks a question is a fool for a minute, the man who does not ask is a fool for life.

If an urn lacks the characteristics of an urn, how can we call it an urn?

When you are ignorant about something, to know that you are ignorant about it - that is knowledge.

Thought, unassisted by learning, is dangerous.

Without goodness a man cannot endure adversity for long, nor can he enjoy prosperity for long. The good man is naturally at ease with goodness. The wise man cultivates goodness for its advantage.

Justice for All in the World

In ancient times, those who wished to illuminate the world with virtue first brought order to their nations. Wishing to order well their nations, they first harmonized their families. Wishing to harmonize their families, they first cultivated themselves. Wishing to cultivate themselves, they first rectified their minds. Those who wished to rectify their minds first made their intentions sincere.