Oh, brother, how kind you are!

噢，兄弟，你真是一片好心！

Like, if people around you are always saying how kind you are or how rude you are, you'll probably start to believe those things about yourself.

比如，如果你周围的人总是说你很善良或你很粗鲁，你可能会开始相信那些关于你自己的评价。