Solomon
Proverbs 29:9ESV·traditional attribution

If a wise man has an argument with a fool, the fool only rages and laughs, and there is no quiet.

Matthew Henry Presbyterian @wholebiblehenry

A wise man is here advised not to set his wit to a fool's, not to dispute with him, or by contending with him to think either of fastening reason upon him or gaining right from him: If a wise man contend with a wise man, he may hope to be understood, and, as far as he has reason and equity on his side, to...

John Gill Reformed Baptist @doctorgill

If a wise man contendeth with a foolish man,.... Enters into a controversy with him, either by word or writing, in order to convince him of his folly and wickedness, of his errors and mistakes; whether he rage or laugh, there is no rest; that is, either whether the fool is angry with the wise man, and rages at him and abuses him, and calls...

Jamieson-Fausset-Brown Reformed @jfbcommentary

contendeth--that is, in law. whether . . . laugh--The fool, whether angry or good-humored, is unsettled; or referring the words to the wise man, the sense is, that all his efforts, severe or gentle, are unavailing to pacify the fool.