LotR -- Book 4 - Chapter 10 - The Choices of Master Samwise

[davem]

Regarding the self-defeating tendency of evil (in Middle earth at least), this from Brian Rosebury's book - Tolkien: A Cultural Phenomenon :

..The defeat of the forces of evil should ideally appear, not as a lucky accident, or as a punishment inflicted from outside by a superior power (which deprives the actual process of defeat of any moral significance), but as the practical consequence of wickedness itself: Evil must appear as intrinsically self defeating in the long run. Sauron & his servants, despite their steadily growing superiority in crude strength & terror, are hindered by weaknesses which are themselves vices: their lack of imagination, the irrational cruelty which denies them the option of voluntary assistance (the victim must be made to act against his own will), & the selfishness which disables their alliances.