not free to draw a giraffe?

“Art is limitation; the essence of every picture is the frame. If you draw a giraffe, you must draw it with a long neck. If, in your bold creative way, you hold yourself free to draw a giraffe with a short neck, you will really find that you are not free to draw a giraffe. The moment you step into the world of facts, you step into a world of limits.” —G. K. Chesterton, Orthodoxy