2. The problem is the core of mathematics. -P.R. halmos

As long as a branch of science can ask a lot of questions, it is full of vitality, while the lack of questions indicates the termination or decline of independent development. -Hilbert

4. Some beautiful theorems in mathematics have the following characteristics: they are easy to be induced from facts, but the proof is extremely hidden. -Gauss

5. Mathematics is a science. 6. Mathematical metaphor: Zhi Nuo, an ancient Greek philosopher, is known as the "father of paradox". He has four mathematical paradoxes that have been passed down to this day. He once said a famous saying: "The knowledge of the big circle is a little more than that of the small circle, but because the circumference of the big circle is longer than that of the small circle and the contact surface with the outside world is larger than that of the small circle, I feel more lacking in knowledge and need to study hard."

7. Learn mathematics as a language, learn the usage of each term, and be familiar with the meaning of each symbol.

8. Don't let go of any seemingly simple examples-they are often not that simple or can lead to many knowledge points.

9. Being able to use mathematical formulas does not mean being able to do mathematics.

10, if you are not a genius, you don't want to play games if you want to learn math-you think you have done it, but your math level has not improved with your ability to pass the customs-in fact, you can always remember that learning math makes you better play the big game of "life"!

Queen, and number theory is the queen of mathematics-Gauss.