Mithali 21 : 11 Proverbs chapter 21 verse 11

Mwenye mzaha aadhibiwapo, mjinga hupata hekima; Na mwenye hekima afundishwapo, hupokea maarifa.
soma Mlango wa 21

When the mocker is punished, the simple gains wisdom; When the wise is instructed, he receives knowledge.