I think that so many problems would be solved in the world if everyone was just nice. Especially when someone is acting wrongfully towards you, I think all would stop if you stopped getting upset. They would realize it has no effect on you therefore they get nothing out of being mean and hurtful and they would stop. If everyone could just be nice and treat everyone the way they would hope to be treated, and treat everyone THE SAME, the world would be so much better than it is now.
This wouldn't solve all problems, of course, but I feel like it would solve most if not all society problems