Confucius: To know is to know, and to know is not to know. This is knowledge.

Mencius: "When I am an old man, I am like the old man; when I am a young man, I am like the young man."

Laozi: "Those who know me are appreciated, and I am valued. This is why the saint is embraced by the brown jade

Mozi:...to bring benefits to the world and eliminate the harm to the world.

Han Feizi: To speak without knowing is unwise; to know without speaking. , disloyal.

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