He compared stage actors to tightrope walkers, saying, "When you walk the wire in a movie, the wire is painted on the floor, but when you walk it on the stage, it’s a hundred feet high without a net." Who was he

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explanation:

the above mentioned statements talks about the creativity of an artist and to what extend they can utilize and experiment on the objects provided.   differing size and subjects are given so that an image of wisdom is created. displaying a transition from light to dark in something by darkening sections in order to create a shadow. and lastly, putting bits and pieces together to formulate a new image.