1. Don’t treat others lightly with a single word, never promise others lightly with a word, and never underestimate a fake person with a smile.

From "Jiao Chuang Diary" by Wang Yu of the Qing Dynasty. You can't say a word to others casually, you can't promise others a word easily, and you can't smile at others easily. This sentence illustrates that one should be cautious in dealing with others.

2. The mouth is like a stick, and the words are persistent; the mouth is like a note, but the words have no basis.

From "Internal Training" by Empress Wen of Ming Dynasty. If a person's mouth is closed like a door, then what he says will be true and credible; if a person's words are like flowing water, then what he says must be baseless.

3. Don’t take advantage of happiness to talk too much, and don’t take advantage of speed to make things easy.

From "Xue Zidao Lun·Part 2" by Xue Xuan of the Ming Dynasty. Don't talk casually while you're happy; don't do things rashly while you're happy. 4. Say unnecessary words and do unnecessary things, which is worse than what you are doing.

From "Chao's Hakka Language" by Chao Shuo of the Song Dynasty. Say meaningless words and do things that are unnecessary. It is better not to do them.

5. You can’t do it without doing it, it’s like going to a deep stream, even if you regret it, you can’t reach it.

From Qin Lu Buwei's "Lu Shi Chun Qiu· Cautious Actions· Cautious Actions". Which: the same as "ami": to think deeply. Actions must be taken without careful consideration. Without careful consideration, it is like running blindly into a deep stream. Even if you regret it, it will be too late.

Sixth, those who correct the last should take care of the roots, and those who are good at the latter should be cautious about the first.

From "Yutian Fu" by Pan Yue of Jin Dynasty. The end refers to the treetops; the root refers to the roots and trunk of the tree. If you want the branches and tips of a tree to grow lush, you must first make the trunk of the tree grow straight and have deep roots. If you want to get good results from doing something, you must act cautiously from the beginning. This sentence means that in everything you do, you must grasp the fundamentals, be cautious, and start well and end well.