מַ֣יִם עֲ֭מֻקִּים עֵצָ֣ה בְלֶב־אִ֑ישׁ וְאִ֖ישׁ תְּבוּנָ֣ה יִדְלֶֽנָּה׃
Como aguas profundas es el consejo en el corazón del hombre: Mas el hombre entendido lo alcanzará.
Rashi on Proverbs
Counsel in man’s heart is like deep water A halachah in a wise man’s heart is sealed.
Rashi on Proverbs
but a man of understanding will draw it out An understanding pupil comes and draws it out of his innards.