We cannot turn back. We cannot choose the dreams of unknowing. We shall, I expect, open the last door in the castle, even if it leads, perhaps because it leads, on to realities which are beyond the reach of human comprehension and control. And we shall do so with that desolate clairvoyance, so marvellously rendered in Bartok's music, because opening doors is the tragic merit of our identity.

"Tomorrow" - In Bluebeard's Castle (1971)