When people discuss his plays, he says that he feels like he's standing at customs watching an official ransack his luggage. He cheerfully declares responsibility for a play about two people, and suddenly the officer is finding all manner of exotic contraband like the nature of God and identity, and while he can't deny that they're there, he can't for the life of him remember putting them there. In the end, a play is not the product of an idea; an idea is the product of a play.
Tom Stoppard