1. The world is big, and the most equitable distribution is common sense. ——Descartes

2. Any sudden inspiration cannot actually replace long-term hard work. ——Rodin

3. We not only need political and cultural giants, we also need giants in natural science and other aspects. ——Guo Moruo

4. Now, what I am afraid of is not the hard and severe life, but that I can no longer learn and understand the world that I desperately want to understand. For me, learn or die. ——Lomonosov

5. The value of knowledge lies not in possession, but in use.