Nancy wrote "I don't recall the latter though the former is about Dante."
I found the latter. It was a welcome break from some very involved Math.
It is in "Reflections on 'Vers Libre'". I'm using "Selected Prose of T. S.
Eliot." Edited by Frank Kermode, Harcourt Brace and Company, I believe 1975.
Page 35---"There is no escape from metre; there is only mastery."