You can get so many sounds out of one record. Every record can be used in some way.
Other quotes by Christian Marclay
'Record Without A Cover' was about allowing the medium to come through, making a record that was not a document of a performance but a record that could change with time, and would be different from one copy to the next.
If the music in a groove fits with what you're playing, then play it; if not, then you can play it backwards. If that doesn't work, you try it at a different speed. If it really doesn't work you just break it. The whole ritual to put a record on a turntable just to listen to it, I don't do that too often.