The Buddha said, 'Nothing can survive without food.' This is a very simple and very deep truth. Love and hate are both living phenomena. If we do not nourish our love, it will die and may turn into hate. If we want love to last, we have to nurture it and give it food every day. Hate is the same; if we don't feed it, it cannot survive.
In every one of us there are good seeds and bad. We have the seed of brotherhood, love, compassion, insight. But we have also the seed of anger, hate, dissent.
I don't have to hate any person because I can always start anew, I can always reconcile.