My little birds, little fish and frogs cannot be described: all they ask for is to be thought through, they ask for a mode of thought that I have found to be present in only very few people. It is a kind of small philosophy that has nothing to do with literature, a pleasure in arranging forms and giving meaning to each part of the plane. It has much more to do with music than with literature.
-M.C. Escher on Verbum (Earth, Sky, Water), in a letter to Hein's Gravesande, March 1940
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