"More often than not, however, the person who flatly states 'Elves aren't like that!' is hard pressed to describe how they really look.... as if Tolkien has summoned archetypes from so deep in our minds that we can only recall them incompletely."

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Colour, Figure, Motion, Extension and the like, considered only so many Sensations in the Mind, are perfectly known, there being nothing in them which is not perceived. But if they are looked on as notes or Images, referred to Things or Archetypes existing without the Mind, then are we involved all in Scepticism.

— George Berkeley