עֹבֵ֣ד אַ֭דְמָתוֹ יִֽשְׂבַּֽע־לָ֑חֶם וּמְרַדֵּ֖ף רֵיקִ֣ים חֲסַר־לֵֽב׃
耕種自己土地的，必得飽足的食物；追隨虛浮之事的，卻是無知的人。
Rashi
He who tills his soil will be sated with bread To be understood according to its apparent meaning, but according to its allegorical meaning, [this means] he who constantly reviews his studies lest they be forgotten.