American writers often say they find it difficult to write Superman. They say heâ€™s too powerful; you canâ€™t give him problems. But Superman is a metaphor. For me, Superman has the same problems we do, but on a Paul Bunyan scale. If Superman walks the dog, he walks it around the asteroid belt because it can fly in space. When Supermanâ€™s relatives visit, they come from the 31st century and bring some hellish monster conqueror from the future. But itâ€™s still a story about your relatives visiting.
Other quotes from Grant Morrison.