Those who know others are intelligent. Those who know themselves are wise.
Those who win over others are forceful. Those who conquers themselves are strong. Those who are content are rich. Those who force their way ahead have strong will. Those who do not lose what they have will last. Those who die without losing themselves have longevity.
—Chapter 33, Laoze
You need to be smart to know others. But only those who know themselves are the wise ones. In human life, most people like to know about the affairs of others while few have the inclination to know themselves. Therefore it is a rare ability to know oneself.
