עֹבֵ֣ד אַ֭דְמָתוֹ יִֽשְׂבַּֽע־לָ֑חֶם וּמְרַדֵּ֖ף רֵיקִ֣ים חֲסַר־לֵֽב׃
דער װאָס באַאַרבעט זײַן ערד, האָט ברױט צו זאַט, און דער װאָס יאָגט זיך נאָך פּוסטע זאַכן, איז אָן שׂכל.
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.