There is a dial in front of you, and if your turn it, a stranger who is in mild pain from being shocked will experience a tiny increase in the amount of the shock, so slight that he doesn’t even notice it. You turn it and leave.
Wat?! No I do not turn the knob.
But I do continuously strive to be the change I want to see in the world. I share and repost only the best things I can find. I add my commentary here, there, and wherever (think, “Facebook comments”) only when I can imagine a way that others could find it useful. That’s very different—by the way—from only leaving positive comments. I try to create new things that inspire people or, even better, which make them think.