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

What pleases me most about mathematics is what can be proved. ? Bertrand Russell

Mathematics has made an important contribution to observing nature. It explains the simple primitive elements in the regular structure, with which celestial bodies are built. ? Kepler

After modern high-energy physics reaches quantum physics, many experiments can't be done at all, which is not much different 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 and perfection of mathematics are closely related to the prosperity of the country. ? -Napoleon

Any branch of mathematics, no matter how abstract, will be applied to the real world one day. ? Lobachevsky