Is violence really necessary?

I have always disagreed with violence for the question, What will i get out of hitting that person? Or killing someone? Well if i hit someone or kill someone i will feel good about myself, and perhaps some relief, but only temporarily relief, so in the end, it shall turn out to be unncessary. How about we talk things out. There's not need for violence, but of course if you hit me, i will hit you back. So self-defense is necessary, especially the person has been hitting you for a while now and it's hard to make 'em stop so that you can talk things out...ya know? Through my perspective, violence is only necessary when needed. But otherwise, nope, because if you do hit someone you are in a way oppressing them. Remember, the oppressed become the oppressors.. I forget who quotes that.

-Claudia De Anda