1. Smart people have long ears and short tongues. Flagg

2. Stones from other mountains can be used to grind jade ---- Stones from other mountains can be used to grind jade.

3. The speaker is not guilty, and the listener is a warning - the speaker has no fault, and the listener can be warned

4. The husband uses copper as a mirror, You can straighten your clothes; use the past as a mirror to know the ups and downs; use people as a mirror to know the gains and losses. Emperor Taizong of the Tang Dynasty

5. Water can carry a boat, but it can also overturn it. "Xunzi"

6. Loyal advice is unpleasant to the ear and beneficial to action; good medicine is bitter to the mouth and beneficial to disease. Historical Records·Liuhou Family

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