摇笔杆，做学问的人，不论是初习文者，还是文章大家，往往会以自己的作品，广泛听取批评，以求改进。有的还以特殊的、引人泞目的方法，广求意见。但其效果，有时却截然不同。这是值得深思的。唐宋八大家之一的欧阳修，因直谏被贬，出知滁州，即今安徽省滁县，写下传世之作《? Pencil Sharpener, a learned person, whether it is a freshman, or articles, often with their own works, widely heard criticism, in order to improve. Some also special, muddy purpose of the method, seek opinions. But its effect, sometimes very different. This is worth pondering. Ouyang Xiu, one of the eight members of the Tang and Song dynasties, was denounced as a direct remonstrance, and Chu Chuzhou, now Chu County, Anhui Province, wrote his reincarnation as “?”