כִּ֤י ט֣וֹב סַ֭חְרָהּ מִסְּחַר־כָּ֑סֶף וּ֝מֵחָר֗וּץ תְּבוּאָתָֽהּ׃
이는 지혜를 얻는 것이 은을 얻는 것보다 낫고 그 이익이 정금보다 나음이니라
Rashi
for its commerce is better than the commerce of silver In any exchange, when a person exchanges [something] for merchandise, this one takes this, and that one takes that; but if one says to his friend, “Teach me your chapter, and I will teach you my chapter,” [then] both chapters are found in the hand of each of them.