Do not be apathetic towards the greater good. Even if life is meaningless, you can make the things around you better in the short term. 

Fight for what you believe in... ideally in a sly, roundabout, and clever way that leverages intelligence and not aggression. 

Don't get taken advantage of. Stand your ground. Be willing to fight. Draw the fucking line and don't be a bitch... fight for those that come after you when your line is crossed.

You're gonna die... go out with a cause.