Explanation: This means that when a master stonemason grinds a stone, the stone blank will grow a tooth when he eats a brazing rod. Trench: a trench, which is a metaphor for difficulties and setbacks. Wisdom: wisdom and insight. It means that if you suffer a setback, you will learn a lesson and increase your intelligence. It is the truth of learning from failure.

Dilemma and wisdom are actually the gap between ideal and reality. When a person encounters something, he should either think carefully or make a decisive decision. These two words can also be called indecision and arbitrary, no matter what choice, the result is not necessarily perfect.

Just like the pros and cons of learning from a pit, why do people have a sense of frustration? It is because people always imagine the world to be too perfect, but the reality hits the face again and again. The fault is not reality but ourselves.

on the road of life, we have a kind of relief called a blessing in disguise, and there is also a kind of helplessness called that people are not as good as heaven. So I think that since I regard one thing as a chasm, I will grow that wisdom. If I don't take wisdom as a comprehensive understanding of the world, then I will face the reality that I am a mortal.

Everyone is always growing through exercise, and only setbacks and difficulties can raise people to a higher level. Without setbacks and difficulties, it is difficult to have a perfect life.

Source: Ming Wang Shouren's Book with Xue Shangqian: "Those who learn from one lesson gain wisdom, and what they lose today may not be what they gain the next day." Extended information

related examples

1. Some people think that you can learn from mistakes only by experiencing them yourself.

2. It is inevitable that investors will have gains and losses when investing in funds, but the key is to find out the reasons for success or failure and overcome them in future investments, so as to avoid the occurrence of bad investment behaviors.

3. When human beings suffer from the same disasters, they always learn from the mistakes. In order to make human beings learn to plan ahead, nature has created many disasters.

4. Last season's home draw with fewer teams made Liverpool pay a high price, but I know that Benitez will definitely learn from his mistakes.

5. Pay in advance and don't wait for the expiration, and you will learn from your mistakes.