Two Zen monks were discussing the nature of Time.
Monk A: See that flag rippling in the wind? The flag moves, does it not?
Monk B: Maybe.
Monk B: I say, the wind moves.
Monk A: Maybe.
Just then the Master came by, who had been listening to the conversation.
Master: No, you idiots! It is the Mind that moves!
Monk A and Monk B (in unision): Maybe!