Ecclesiastes 10:3 in the King James Version
Yea also, when he that is a fool walketh by the way, his wisdom faileth him, and he saith to every one that he is a fool.
Context
2 A wise man’s heart is at his right hand, but a fool’s heart at his left.
3 Yes also when the fool walks by the way, his understanding fails him, and he says to everyone that he is a fool.
4 If the spirit of the ruler rises up against you, don’t leave your place; for gentleness lays great offenses to rest.