1, the correct view is that mathematics not only has truth, but also has extraordinary beauty-a beauty as cold and simple as sculpture, a beauty that does not need our weak nature to perceive, a beauty that is not as ornate as painting and music, and a strict perfection that only the greatest art can have.

-Russell (British philosopher, mathematical logician, the main founder of analysis, the advocate and organizer of the world peace movement. )

2. Being good at "retreating", retreating enough and retreating to the original place without losing its importance is a trick to learn mathematics well.

-Hua

3. Mathematics is a tool especially suitable for dealing with any abstract concept, and its power in this field is infinite. For this reason, a book about emerging physics, as long as it is not a pure experimental description, must be a math book in essence. -Dirac

Mathematics is the key to science and the beauty of the universe.

Kepler (German astronomer and optician)

5. Mathematics has two sides. On the one hand, it is a strict science of Euclid. From this perspective, mathematics is a systematic deductive science. On the other hand, mathematics in the process of creation looks like an experimental inductive science.

-Paulia (mathematician and math educator)

6. The same is true of "difficulty". Facing the cliffs, you can't see a crack in a hundred years, but you can cut it inch by inch and foot by foot with an axe. If you keep accumulating, a leap will come and a breakthrough will follow. -Hua (a world-famous mathematician, the founder and pioneer of China's research in analytic number theory, matrix geometry, canonical group and self-safety function theory. )

7. Think, keep thinking, wait for the dawn, and gradually see the light. If I have contributed to the world, it is not because of anything else, but because of my hard work and persistent thinking. -Newton (British mathematician, astronomer and physicist)