Depth is not necessarily manifested in appearance, just shallow water. The reason why deep water is silent lies in its heavy load and broad mind, which can accommodate all rivers.
We have always attached importance to "cautious words", and neither "multilingual" nor "amazing words" have been respected by saints since ancient times. Those who usually don't talk much and can talk are clear-cut, thought-provoking and considerate, which makes people admire their knowledge from the bottom of their hearts.
Extended data
The idiom to describe a person who speaks late is to speak quickly and act quickly.
Ne Yan Min Xing is an idiom, and its pinyin is nè yán mǐn xíng, which means to speak carefully and do things quickly. Neat words: speak carefully; Min: Agile. From the Analects of Confucius.
Song Zhuxi's "Answer to the King": "Be conscious, don't say what you want to do, and take the right and the wrong."
The original explanation of this article can't reflect the essence of this entry. What it really means is that people should be careful when they speak, because if they don't speak carefully, they will hurt themselves and others and bring trouble and even disaster. And do things with ability and diligence. In a word, warning people to talk less and do more is the principle that most people in today's society should follow.
References:
Baidu encyclopedia-Minhang, Yan Na