Sometimes I get to the point where I'm not sure anything matters at all. Then I read something like this and I am inspired:

It's not hard to figure out what's good for kids, but amid the noise of an increasingly antichild political climate, it can be hard to remember just to go ahead and do it: for example, to vote to raise your school district's budget, even though you'll pay higher taxes. (If you're earning enough to pay taxes at all, I promise, the school needs those few bucks more than you do.) To support legislators who care more about afterschool programs, affordable health care, and libraries than about military budgets and the Dow Jones industrial average. To volunteer time and skills at your neighborhood school and also the school across town. To decide to notice, rather than ignore it, when a neighbor is losing it with her kids, and offer to babysit twice a week. This is not interference. Getting between a ball player and a ball is interference. The ball is inanimate.

This is from Barbara Kingsolver's brilliant collection of essays, High Tide in Tucson (1995, HarperCollins)