תֵּ֣ן לְ֭חָכָם וְיֶחְכַּם־ע֑וֹד הוֹדַ֥ע לְ֝צַדִּ֗יק וְי֣וֹסֶף לֶֽקַח׃ (פ)
Give to a wise man, and he will be yet wiser; teach a righteous man, and he will increase in learning.
Read Jewish philosophical commentary on Proverbs 9:9: and classical philosophical sources.