The bit of a song I heard and really liked, set me off on a search for 'cracker change the world'. When you plug that into Google though, it gets you more than just the song lyrics you're looking for. howyoucanchangetheworld.com lists eight pillars of wisdom and follows with concrete suggestions for exactly what an individual can do to make his mark. The song's more direct approach is inspiration enough for me though.
Let's get off this, and get on with it, If you wanna change the world, shut your mouth and start to spin it. Get off this, get on with it, If you wanna change the world shut your mouth and start this minute.
I hope lots of people are listening to this.