Proverbs 21:11

21:11 When a scorner is punished, the naive becomes wise;

when a wise person is instructed, he gains knowledge.

Proverbs 22:3

22:3 A shrewd person sees danger and hides himself,

but the naive keep right on going and suffer for it.

Proverbs 27:12

27:12 A shrewd person sees danger and hides himself,

but the naive keep right on going and suffer for it.