1. Of all things in the world, only those that are useful are the most precious.

2. What we love today is often what we will hate tomorrow; what we pursue today is often what we will avoid tomorrow; what we hope for today is often what we fear, and even frighten trembling with fear.

3. The most effective way for a person to educate others is to educate himself first.

4. The reason why they cannot enjoy God’s gifts comfortably is because they are always hoping and coveting things that they have not yet obtained.

5. It can be seen that we ordinary people will not be able to understand the benefits of the original environment unless we see a worse environment with our own eyes; if we have to be at the end of our rope, we will not know how to cherish what we originally enjoyed. .

6. In the most unfortunate situation, we can compare the advantages and disadvantages and find something to comfort ourselves with.

7. As long as possible, everyone will become a tyrant. This is the nature given to humans by nature.

8. How changeable human emotions are in different environments! What we love today is often what we will hate tomorrow; what we pursue today is often what we will avoid tomorrow; what we desire today is often what we fear or even tremble with tomorrow.

9. My pocket watch is broken, which only delays my personal affairs. The big bell on the church bell tower was broken, which delayed the entire parish.