"For instance, on the planet Earth, man had always assumed that he was more intelligent than dolphins because he had achieved so much --- the wheel, New York, wars, and so on --- whilst all the dolphins had ever done was muck about in the water having a good time. But conversely, the dolphins had always believed that they were far more intelligent than man --- for precisely the same reasons."
"For instance, on the planet Earth, man had always assumed that he was more intelligent than dolphins because he had achieved so much --- the wheel, New York, wars, and so on --- whilst all the dolphins had ever done was muck about in the water having a good time. But conversely, the dolphins had always believed that they were far more intelligent than man --- for precisely the same reasons."