Gibran had several wise quotes that could, and perhaps should, be applied here.
Wisdom ceases to be wisdom when it becomes too proud to weep, too grave to laugh, and too selfful to seek other than itself.
I have learned silence from the talkative, toleration from the intolerant, and kindness from the unkind; yet, strange, I am ungrateful to those teachers.
An eye for an eye, and the whole world would be blind.