Ecclesiastes 10:3 KJV
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.
Ecclesiastes 10:3, King James Version
In context
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 by the way, his wisdom faileth him, and he saith to every one that he is a fool.
4 If the spirit of the ruler rise up against thee, leave not thy place; for yielding pacifieth great offences.