She doesn't hold back anything from them. When they beg her not to depart, she reminds them that nothing lasts forever. She's as truthful as the nursery rhymes. Remember that all the King's horses and all the King's men couldn't put Humpty-Dumpty together again. There's such a tremendous truth in that. It goes into children in some part of them that they don't know, and indeed perhaps we don't know. But eventually they realize — and that's the great truth.

The Paris Review interview (1982)