这是一个天大的题目,而讲天大的题目似乎首先要有天大的学问。写大题目的人很多。老老实实地讲,我自度没有天大的学问,而且今生也不会有天大的学问,但有天大学问的人有几个?所以,我没有天大的学问,但有天大学问的人也不多。况且,我要讲的是“天下的学问”,而天下不等于天大。今 This is a big problem, and the big topic seems to be the first to have a great learning. Write a lot of people a big problem. Honestly speaking, I do not have great knowledge on my own, and there is no big learning in my life, but how many people do I have to ask for? So, I do not have great knowledge, but I have a question Not many people. Moreover, what I want to talk about is “the world’s knowledge”, but the world is not equal to heaven. this