Ecclesiastes 10:1-3

21st Century King James Version

10 Dead flies cause the ointment of the apothecary to send forth a stinking savor; so doth a little folly in him that hath a reputation for wisdom and honor.

² A wise man’s heart is at his right hand, but a fool’s heart at his left.

³ Yea also, when he that is a fool walketh along the way, his wisdom faileth him, and he saith to everyone that he is a fool.