? 1. Some problems can't be solved by today's physical theory, and new theories will be produced. This is exciting. The harder the problem, the greater the challenge.

Science and art are two sides of the same coin.

3, lifelong benefit is not worth it. Studying physics is to explore the principles of matter. The principle is bigger than the people's congress. You seize this goal, keep studying, and then express it accurately. Undergraduate students, doctoral students and professors are all like this.

4. Sit down. My hearing is not very good. Can you repeat your question?

If no one has made all the mistakes, the final result is of course correct.

6. Being able to ask questions correctly is the first step of innovation.