1. The truth is ordinary, and the truth is inseparable from ordinary things and ordinary people. ——Feng Ding

2. In short, without language, there is no thought; and with language, not only does thinking have reliance, but it also promotes the emergence of rules in thinking, and in turn, one can think according to the rules. . ——Feng Ding

3. Language is spoken thoughts, words are written thoughts, and thoughts are just Chinese language that has not yet been spoken or written. ——Feng Ding