There may be fairies at the bottom of the garden. There is no evidence for it, but you can't prove that there aren't any, so shouldn't we be agnostic with respect to fairies?
“Whenever you play dance music, it serves a function. It becomes a utility; you have to worry about the tempos and what you're going to play for people. But when you're playing for listening, you're free.”
“Indeed I did not stand as a beggar at the Parliament door, for I never was at the Parliament-House, nor stood I ever at the door as I do know or can remember; not as a petitioner I am sure.”