The heart of him who has understanding seeks knowledge, But the mouth of fools feeds on foolishness.
Proverbs 15:14
Surrounding context
15:13 A merry heart makes a cheerful countenance, But by sorrow of the heart the spirit is broken.
15:14 The heart of him who has understanding seeks knowledge, But the mouth of fools feeds on foolishness.
15:15 All the days of the afflicted are evil, But he who is of a merry heart has a continual feast.