עֹבֵ֣ד אַ֭דְמָתוֹ יִֽשְׂבַּֽע־לָ֑חֶם וּמְרַדֵּ֖ף רֵיקִ֣ים חֲסַר־לֵֽב׃
El que labra su tierra, se hartará de pan: Mas el que sigue los vagabundos es falto de entendimiento.
Rashi on Proverbs
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.