Famous aphorisms about reflection:

1. Rotten wood cannot be carved. Explanation: Rotten wood cannot be carved. It is a metaphor that people cannot be made good or that things and situations are corrupt and irredeemable. Also written as "Rotten wood cannot be carved", also written as "Rotten wood cannot be carved",

2. The Master taught four things: literary conduct, loyalty and trustworthiness.

Explanation: Confucius educated his disciples from four aspects: 1. Literature, that is, famous studies. Study how to increase visibility, practice learning, and standardize people's behavior so that people's words and deeds can be followed. 3. Loyalty is a matter of self-cultivation. It is to cultivate people to do what they should do voluntarily. 4. Faith learning is the learning of knowing people and distinguishing things, and the learning of cultivating people's judgment.

3. A gentleman is magnanimous, but a villain is always concerned. Explanation: A gentleman is broad-minded and tolerant of others; a villain is petty and narrow-minded.

4. He is sensitive and eager to learn, and he is not ashamed to ask questions. This is why he is called "literary". Explanation: It means not to be ashamed to ask for advice from those whose status and knowledge are lower than your own. Therefore, the word "文" can be used as his posthumous title.