The famous sayings that satirize people's duplicity are as follows:

1. One mouth, two faces, half-hearted, in all directions.

What this sentence implies is that a person looks friendly on the surface, but doesn’t know what he is saying behind his back. At the same time, he may be showing off his duality in his heart, which is very disgusting.

2. "Tell the truth" at every turn is actually "skinny and tell the truth". This sentence implies that those who keep saying that they "tell the truth" actually have nothing substantial to say. Word. They are just lying.

3. When you say: "Be honest and aboveboard", he replies: "I have learned an optical effect." This sentence shows that those who are not what they seem are. People obviously know they are telling lies, but they still have to use optical effects to convince others that they are telling the truth.

4. There are often people who talk as sweet as honey while doing disgusting things. It can be seen that the attitude towards others sometimes cannot reflect a person's true heart.

This sentence shows that people who appear to be very friendly on the surface do unacceptable things in their behavior. This shows that being friendly to others does not necessarily mean that a person is kind at heart.

5. It is difficult to paint the skin of a tiger, but it is difficult to paint the bones of a tiger.

The appearance of a tiger is easy to draw, but its bones are difficult to draw. The appearance of a human is easy to recognize, but the human heart is difficult to understand.

6. Ancient people looked like animals, but they all had great saintly virtues. Nowadays, people look like humans, but their hearts are unfathomable.

7. Worms eat green grass, rust eats iron, and hypocrisy eats the soul.

8. People’s hearts are as different as their faces.

9. In many affairs in this world, people are saved not because of loyalty, but because of lack of loyalty.

10. Hypocritical sincerity is more terrifying than the devil.

11. When something happens, you have to say only three things, but don’t give it all.

12. I searched for the depth of the human heart, but I saw the shallowness of the human heart.

13. The weather is getting cold now. Seeing how thickly you are dressed, I didn’t expect you to be so thick-skinned!

14. I am pretending to be stupid just to make you happy. You think I am really funny.

15. I am also afraid of time telling the truth, and insisting on it will become a joke later.