Good men and bad men differ radically. Bad men never appreciate kindness shown them, but wise men appreciate and are grateful. Wise men try to express their appreciation and gratitude by some return of kindness, not only to their benefactor, but to everyone else
The method of trying to conquer hatred through hatred never succeeds in overcoming hatred. But, the method of overcoming hatred through non-hatred is eternally effective. That is why that method is described as eternal wisdom.