^{9 Ref} Give teaching to a wise man, and he will become wiser; give training to an upright man, and his learning will be increased.

^{9 Ref} Instruct a wise man, and he will be still wiser. Teach a righteous man, and he will increase in learning.

^{9 Ref} Give `instruction' to a wise man, and he will be yet wiser: Teach a righteous man, and he will increase in learning.