Here’s a poem recited by Saul Williams on a recent MTV2 commercial. It’s somewhat brief but still great stuff.

Cities play upon our souls like broken drums
We drum the essence of creation from city slums
But city slums mute our drums
And our drums become hum drum

‘cause city slums have never been where our drums were from
Just the place where daughters and sons become offbeat heartbeats
Slaves to city streets where hearts get broken
When heart beats stop
Broken heartbeats become breakbeats for niggas to rhyme on top

But they rhyme about nothing
They don’t have nothing to rhyme about ‘cause they’ve never seen the
Your styles can’t be universal if you’re not intuned with the wind