You can. You will. You are. I keep my eyes open for positive signs of change. I stay in the trenches, seeking opportunities to highlight what's good when I find it. For example, a year ago, I posted a comment about the value of Youtube and educators (in this case, VSauce), who are reaching out with the best they have in making subjects interesting and approachable. It's supplementary education that these kids WANT to get. Schools aren't doing it as they are doing it now, and haven't. It's on his video, "Why are we morbidly curious?". But what's interesting is not what I said, it's the PASSIONATE replies from young people, all craving for that something "different" than what they're getting. They'll likely be graduated and out of school by the time the kinds of changes necessary are visible to the outside world, but their passion is there NOW... the same passion I had when I was their age, and still have today. These kids are unleashed on the 'net, more opportunities than we could imagine, in so many directions. Opportunities to help them become better people, know more, think more clearly, be able to handle emotional stressors in life... they abound on a day-to-day basis. So, I try to find opportunities to help. Turning little switches here and there and hoping a changed mind will self-organize into greater and greater things in THEIR places, wherever they find themselves... and help improve their world... not just while they're in school, but through life. I never found an enveloping set of principles or groups to become a part of in my efforts, so I go alone as best I can, stay exposed and open and I know some good will come of it and it seems much already has even in my lifetime.