Qing: 1 The natural paragraph gets to the point from the opposite side. In the eyes of ordinary people, science is profound, difficult to understand and boring; The image of Einstein, a scientist in the eyes of ordinary people, is pale, angry and wrinkled; Stimulate readers' interest in reading by using the method of promoting first and restraining second; The second paragraph demonstrates from the front that science is an argument of beauty, and it is an extraordinary beauty. This is in sharp contrast to the above "abstruse, strict, difficult to understand and boring" ~