Proverbs 16:22 in the World English Bible
Understanding is a fountain of life to one who has it, but the punishment of fools is their folly.
Context
21 The wise in heart shall be called prudent: and the sweetness of the lips increaseth learning.
22 Understanding is a wellspring of life unto him that hath it: but the instruction of fools is folly.
23 The heart of the wise teacheth his mouth, and addeth learning to his lips.