Enemies Teach. Friends Preach.

There is no truer friend than your own conscience.

a good friendship is beneficial to both, a bought friend is a free enemy that no one can afford.

Friends never turn as enemies. If they did, they were never your friends at all.

You know, maybe we don't need enemies."
"Yeah, best friends aree about all I can take.

He will never have true friends who is afraid of making enemies.