Reach out and touch someone!
I don't know about you but I often wonder if I've done anything with my life, have I made any kind of possitve impact. We don't tend to see the little things we do that can be life changing to someone else. If I did nothing else in my life I know that being here for my grand daughter and her daughter have changed the negative lifestyle that has gone on for generations in her family. She has broken the chain of abuse and addiction that has gone on for many generations and all I did was open my home to her. She did the work but had I (we) not opened that door for her she would most likely be in a horribly sad situation. So you don't have to change the world, just change a little piece of it and look at the difference it makes!