Если нужно - вот та же цитата в оригинале (3/V-9, "The Last Debate"): «If it is destroyed, then he will fall; and his fall will be so low that none can foresee his arising ever again». На эту тему навскидку вспоминается письмо к Р. Боуэну:
After the battle with Gilgalad and Elendil, Sauron took a long while to re-build, longer than he had done after the Downfall of Nuumenor (I suppose because each building-up used up some of the inherent energy of the spirit, which might be called the 'will' or the effective link between the indestructible mind and being and the realization of its imagination). The impossibility of re-building after the destruction of the Ring, is sufficiently clear 'mythologically' in the present book.
Вспомню еще цитаты - напишу.