Anyway, I have in this War a burning private grudge – which would probably make me a better soldier at 49 than I was at 22: against that ruddy little ignoramus Adolf Hitler (for the odd thing about demonic inspiration and impetus is that in no way enhances the purely intellectual stature: it chiefly affects the mere will). Ruining, perverting, misapplying, and making for ever accursed that noble northern spirit, a supreme contribution to Europe, which I have ever loved, and tried to present in its true light.
A private letter of Tolkien LINK