"ba doost chenan bash ke agar doshman shavad zian nashavee.
ba doshman chenan bash ke agar doost shavad khejel nashavee."
(iranian poet Saadey)(soooo goooooood)

"with friends act in such a way that if one becomes an enemy you won't be injured.
with enemies act in such a way that if one becomes a friend, you won't be embarrased"