Physics is the application of mathematics in practical problems, and mathematics is the foundation of physics. Physics will encounter mathematical difficulties in the development process, resulting in many famous mathematical conclusions and formulas, such as calculus and derivatives. As for the laws of natural design, I think it is easier to understand. Science is a kind of knowledge that studies the universal laws of nature. As for mathematics, chemistry and physics, I think they are just different, but they are all studying the whole universe in essence. Therefore, when all sciences reach the acme, the law of discovery should be the same. What we are doing now is unification. Remember another sentence: "We will bring the whole universe into the same system".