Ecclesiastes 10:1-3

Darby Translation

10 Dead flies cause the ointment of the apothecary to stink [and] ferment; [so] a little folly is weightier than wisdom [and] honour.

² The heart of a wise [man] 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 sense faileth [him], and he saith to every one [that] he is a fool.