I think the importance of doing activist work is precisely because it allows you to give back and to consider yourself not as a single individual who may have achieved whatever but to be a part of an ongoing historical movement.
It avoids a self-conscious relationship to the act. We live in the most self-conscious society in the history of mankind. There are good things in that, but there are also terrible things. The worst of it is, that we find it hard to give ourselves to the cultural process.

