Sanksrit Sukti on getting rid of enmity

न हि वैरेण वैराणि
शाम्यन्तीह कदाचन
अवैरेण तु शाम्यन्ति
एष धर्म: सनातन:

Na hi VaireN VairaaNi
Shaamyanteeha Kadachan
AvaireiN tu Shaamyanti
Aesha Dharma: Sanaatanan:

Meaning:
Enmity can never be quieted(removed) by enmity.
It can be removed only through friendship.
That is the ancient truth. (the word Dharma is used to mean truth here)