Proverbs 14:28-30

Revised Standard Version

²⁸ In a multitude of people is the glory of a king,
    but without people a prince is ruined.
²⁹ He who is slow to anger has great understanding,
    but he who has a hasty temper exalts folly.
³⁰ A tranquil mind gives life to the flesh,
    but passion makes the bones rot.