1 I have loved mental and manual labor all my life, perhaps even more. I feel more satisfied when I add any excellent understanding to manual labor, that is, when my hands and brain are combined. I am willing to devote my life to scientific research and contribute to the birth of my country and people. Learn to do rough work in science. We should study facts, compare facts and accumulate facts. Before you want to climb to the top of science, you must thoroughly study the elementary knowledge of science. Never start doing anything until you fully understand the situation ahead. The question mark is the key to any science. When you work and study, you must have a strong passion. You want to know immediately, which means you don't know anything. Genius is the highest ability to concentrate on learning. Science has no national boundaries, but scientists have national boundaries. 10 No matter what I do, I always think that as long as my energy allows, I will serve my country first. 1 1 Never think you know everything. 12 Be modest. Never think you know everything. No matter how much others value you, you should always have the courage to say to yourself, "I have no knowledge."