The Oatmeal has done a wonderful job of encouraging kindness:
When I face any kind of discouragement, I hope that this can inspire me to be kind. Sometimes thinks don’t turn out OK, sometimes they do. I may not be able to save the world, but today I’m going to try to be the best that I can be by giving what I can reasonably give to those around me.
I often want to change the world. I want to be big and important and make dramatic improvements to the world around me, maybe I will, maybe I won’t. I have no power over the influence that I actually wield.
I may not be happy with my situation, but I can try to be happy with myself in my situation.