Tell me a little story or idiom about philosophical contradictions?

Zhuangzi and his friends walked on the bridge. Zhuangzi looked at the fish and said, "The fish is very happy." My friend said, "You're not a fish, how do you know that fish are happy?" Zhuangzi said: You are not a fish, how do you know that fish are unhappy?

Examples are:1. Knowing that smoking is harmful to health, some people still smoke.

2. Knowing that true love is priceless.

But some people choose the object with more money.

3. Knowing the moral standards, there are people who do the second and third wives.

4. Knowing that "there are three unfilial pieties."

There is no queen for the greatest", some people are happy to be a Dink family, but they hate to have no children when they are old.

5. Teach children to be honest, but in life we make up more or less white or non-white lies.

6. Knowing that customers enjoy their products with certain risks and dangers, some businesses produce products that poison consumers without conscience.

7. We know that eating too much of some things is not beneficial, but we can't control our mouths and eat happily.

Examples of contradictions:

1. A young man against a great inventor.

Edison said"I had a great ideal, and that was that I wanted to invent a universal solution that could dissolve everything. "Edison asked in amazement

What the! So what utensils do you want to use to place this universal solution? Doesn't it dissolve everything?

2. The venue was full of voices and laughter. The host raised his arms and shouted: "Don't speak!" "Oh, he forgot that he was also talking. On the newly painted blackboard, the four Daewoo are prominently written.

No scribbling. "Ahem, what are these four words?

3. People can lift objects heavier than themselves, but they can never lift themselves.

4. On the one hand, Fang emphasized the deficit with China.

On the one hand, it is paradoxical not to relax export controls to China.

1. Translations of contradictory stories.

There was a man in the state of Chu who sold spears and shields, and he first boasted of his shield, saying, "My shield is so strong that no matter what spear I use, I can't pierce it!" Then he boasted of his spear and said:

My spear is so sharp that no shield I use can fail to pierce it! Some of them asked him, "What would happen if you pierced your shield with your spear?" The man was dumbfounded. A shield that can't be pierced by any spear and a spear that can be pierced by any shield can't appear together at the same time.

2. The original text of the story of the self-spear and the swift lead defeat of the shield.

This idiom comes from "Han Feizi Difficult One", and the original text is as follows:

The Chu people have spears and shields, and they are known as saying: "The strength of my shield is that things cannot be trapped." He also praised his spear and said:

The benefits of my spear are all trapped in things. Or rather"What is the spear of the son, the shield of the trap?

His people can also respond. The shield that cannot be trapped and the spear that is not trapped cannot stand together in the world.

Contradictory Han Feizi Difficult One Thirty-Sixth".

The Chu people have shields and spears, and they say: "The strength of my shield is that things can't be trapped." He also praised his spear and said:

The benefits of my spear are all trapped in things. Or say: "Suiqiao is the spear of the son, the shield of the trap, guess what it is?"

His people can also be eliminated. The shield that cannot be trapped and the spear that is not trapped cannot stand together in the world.

There was a man in the state of Chu who sold spears and shields, and first boasted that his shield was strong, saying, "Nothing in the world can pierce it!" Then he boasted of the sharpness of his spear, saying:

My spear is so sharp that it can pierce everything in the world! The marketmen questioned him, "What will happen if you pierce your shield with your spear?" , that person can't. And they laughed at him. A shield that cannot be pierced and a spear that does not pierce a shield cannot exist at the same time.

The idiom of self-contradiction comes from "Han Feizi Difficult One".

In ancient times, spears and shields were used in battle. Spears are used to stab enemies, while shields are used to protect the body from being stabbed by opponents' spears.

Legend has it that a long time ago, there was a man in the state of Chu who sold weapons and sold spears and shields in the market. In order to make people want to buy his goods, he first raised his shield and boasted to the people: "You see, my shield is the strongest shield in the world, and nothing sharp can pierce it."

Then he lifted up his spear and boasted, "Look at my spear again, it is so sharp and indestructible that no shield may be able to stop it, and it will pierce it with a single piercing!" ”

The onlookers were amused by his words, and one of the crowd asked, "According to you, your spear can pierce no matter how hard your shield is, and your shield, no matter how sharp your spear is, can pierce it." Then take your spear and pierce your shield and see what happens. ”

When the weapon seller heard this, he was speechless and had no choice but to take his spear and shield and leave.

"Paradox" evolved from this story. Nowadays, people use it as a metaphor for doing things and talking against each other.