Know the price of your Rage and Anger before you act
This is a video connected to recent events in Baltimore. I would argue that this man is more persuasive and effective than anything I would write. Anger and Rage can be effective but breathe and THINK before using them or you may squander something very important.
While I have strong opinions on the events in Baltimore, I would counsel those bearing hate and disdain for the people there to imagine you had lived with one tenth of what they did. I would also spend more time looking for examples of what people have done there everyday to build.