“VI A few examples: A sailor of antiquity in his boat, enjoying himself and appreciating the comfortable creations. Ancient art represents the subject accordingly. And now: the experiences of modern man, walking across the deck of a steamer: 1. his own movement, 2. the movement of the ship which could be in the opposite direction, 3. the direction and speed of the current, 4. the rotation of the earth, 5. Its orbit, and 6. The orbits of the stars and the satellites around it.
The result: an organization of movements within the cosmos centred on the man on the steamer.”
Extract from Paul Klee “Creative Credo 1920” quoted in Theories of Modern Art: A Source Book by Artists and Critics, Herschel Browning Chip, Peter Howard Selz, pp.186