Use all the power of the mind to choose the path we should follow. --Descartes, move forward, moving forward will make you believe. --- D'Alembert If I inherit a considerable fortune, I may not be worth much mathematically. --- Lagrange I regard mathematics as an interesting job, rather than trying to build some monument to myself. It's safe to say that I enjoy other people's work more than my own. I am always dissatisfied with my work. ---Lagrange My success depends on only two items. One is to persevere unswervingly to the end; the other is to use hands to accurately create the graphics in the mind. --Monge If someone else thought about the truth of mathematics as deeply and persistently as I did, he would also find my discovery. ---The movement form of Gaussian thinking is usually like this: conscious research - subconscious activities - conscious research. --- Poincaré We must know, we will know. --Hilbert A scholar, in addition to learning knowledge, must also have "tast". This word is not easy to translate, but some translate it into taste and love. If a person wants to achieve great achievements, he must have a very clear "tast". ——Zhen Ning Yang In the world of mathematics, what is important is not what we know, but how we know it. ——Pythagoras Mathematics is an infinite science. ——Herman Weyl A science can only exist when Only when it successfully uses mathematics can it reach a state of true perfection. ——Marx