1. Mathematics is a variety of proof skills. ? -Wittgenstein

2. The universe is big, the particles are tiny, the speed of rockets, the cleverness of chemical engineering, the change of the earth, the mystery of biology, and the complexity of daily life, and mathematics is everywhere. ? -Hua Luogeng

3. What delights me most in mathematics is what can be proved. ? -Russell

4. Mathematics makes an important contribution to the observation of nature. It explains the simple primitive elements in the regular structure, and celestial bodies are built with these primitive elements. ? -Kepler

5. After modern high-energy physics came to quantum physics, many of them couldn't do experiments at all, which is not far from what mathematicians think, so mathematics has incredible power in physics. ? -Qiu Chengtong

6. Only with the vigorous development of mathematics can a country show its national strength. The development of mathematics is closely related to perfection and national prosperity. ? -Napoleon

7. No matter how abstract any branch of mathematics is, it will be applied to the real world one day. ? -Lobachevsky