1. There are no useless gears in this world, and only the gear itself can determine its own use.

2. Trying to gain fame will only undermine your dignity.

3. Unhappy faces abound. Some people's expressions are more than unhappy, which can be regarded as pain. As for those who are more serious than pain, they look like they have given up on themselves.

4. Sometimes, just living a good life is enough to save someone.

5. If you are not happy, everything I do will be in vain.

6. Some truths are destined to be carefully buried deep in the heart, because the moment the answer is revealed, it is also the beginning of ashes.

7. The end of logic is not the utopia of reason and order, but the love that I devote my life to.

8. It seems to be a geometry problem, but it is actually a function problem.

9. Self-righteousness is always the enemy, because you will turn a blind eye to what you can see.

10. When ordinary people want to cover up something with complicated methods, they often dig their own graves due to complexity, but geniuses will not do this.

11. Once a person gets rid of the clock, his life will be as accurate as the clock.

12. It is important to let others know who climbed the top of the mountain first, but it is enough as long as the person involved understands the true meaning.

13. A good theorem must have a beautiful, natural and simple proof.

14. You are simply a stalker who is obsessed with me.

15. For noble things, being able to get close to them is enough happiness.