"The heart of the wise is in the house of mourning,
But the heart of fools is in the house of mirth.
It is better to hear the rebuke of the wise than for a man to hear the song of fools.
For like the crackling of thorns under a pot, so is the laughter of the fool.
This also is vanity." Ecclesiastes 7:4-6

He who walks with wise men will be wise, but the companion of fools will be destroyed." Proverbs 13:20

"The way of a fool is right in his own eyes, but he who heeds counsel is wise." Proverbs 12:15