borrowing philosophies

apparently, someone told me, the little poetic waxing the gas attendant did was based on something George Carlin has done. Since I do not really watch Mr. Carlin (but he was funny as shit in the very good movie Dogma) I did not catch that - so i will say Mr. Carlin, that is one weird way to classify people and I still wonder which I fall into (I would tend to go with the middle one :)