1. The word genius originally has an extremely ambiguous meaning. Its definition is by no means “born knowing something and being able to do it without learning”. There is no one in heaven and earth who is born to know it. There is no one who can do it without learning. Genius is mostly developed through hard work. Genius is mostly due to careful cultivation. ——Guo Moruo

2. We must find an inseparable partner for our enthusiasm, and this partner is strict observation. ——Pasteur

3. A thing that is not understood will turn into a mistake.

—Balaur 4. The easier things are to understand, the easier it is to be preserved in memory; conversely, the more difficult things are to understand, the easier it is to forget. —— Spinoza 5. If you want to see what happens, pay careful attention to everything. ——Song Fan