Authors:
  • Everything has two aspects: the current aspect, which we see nearly always and which ordinary men see, and the ghostly and metaphysical aspect, which only rare individuals may see in moments of clairvoyance and metaphysical abstraction.

    "Artists on Art - from the 14th - 20th centuries" edited by Robert Goldwater and Marco Treves; Pantheon Books, London, (p. 440), 1972.