做学问必须言之有据,言之有理。做学问最忌自以为是,信口开河。那么,何谓“自以为是,信口开河”?请听一个小笑话。有个“学问家”,曾由“采菊东篱下,悠然见南山”一句“推出”陶渊明是个斜眼,还言之凿凿地论证道:“如果不是斜眼,在东边篱笆下采菊花怎么能看到南边的山呢?” Learning must be well-founded and justified. Doing learning is the most taboo of self-righteousness, and it is open to the letter. So, what does “self-righteousness mean, let’s talk open?” Please listen to a small joke. There is a “scholarist” who used the phrase “to pick chrysanthemums under the east fence and leisurely see Nanshan Mountain” to “pull out” Tao Yuanming as a squint and to conclusively argue: “If you are not squinting, how can you pick chrysanthemum under the fence in the east? What about the mountains to the south?"