Wisdom resteth in the heart of him that hath understanding: but that which is in the midst of fools is made known.
– Proverbs 14:33
[T]he word for resteth means to settle down or repose. The heart, or mind, of him who has discernment retains a store of wisdom. In light of the parallel, the first phrase also indicates that wisdom is held within with reserve and quietness, not boasting. The contrast points to the fools who thoughtlessly pour out what they believe is wisdom but is actually foolishness (Proverbs 12:16, 23; 13:16; 15:2, 28; 29:11). Solomon elsewhere noted that a fool’s words and actions continually identifies him as a fool (Ecclesiastes 10:3).