חֲכָמִ֥ים יִצְפְּנוּ־דָ֑עַת וּפִֽי־אֱ֝וִיל מְחִתָּ֥ה קְרֹבָֽה׃
Los sabios guardan la sabiduría: Mas la boca del loco es calamidad cercana.
Rashi on Proverbs
Wise men store up knowledge They guard it in their heart so that they do not forget it.