Holding anger is a poison. It eats you from the inside. We think that hating is a weapon that attacks the person who harmed us. But hatred is a curved blade. And the harm we do, we do to ourselves.
Unfortunate is he who cannot gain a few sincere friends during his life and more unfortunate is the one who has gained them and then lost them (through his deeds).
"Our life is what our thoughts make it. A man will find that as he alters his thoughts toward things and other people, things and other people will alter towards him."
James Allen