Theoretical physics generally requires strong mathematical ability. Newton developed the theory of calculus in order to understand the orbit of objects under the action of gravity. In order to study the general theory of relativity, Einstein deeply felt his lack of mathematical ability, so he went to school to study tensor analysis. Famous theoretical physicists of Chinese descent, such as Yang Zhenning and Li Zhengdao, also have profound mathematical skills and strong computing power, according to the memories of their American counterparts.

But I think thinking and courage are also very important to be a successful theoretical physics researcher. De Broglie of France was a rich boy when he was a child, and he was very interested in physics. His mathematical ability is mediocre among physicists at best, but he dares to think what others dare not think, or even dare to mention what others dare not mention, so he wrote a page in his doctoral thesis, published the material wave equation, and later won the Nobel Prize.

In fact, the most important thing is learning enthusiasm. As long as you like it, you will always feel that you have an internal driving force. Einstein studied in general when he was a child. The teacher thought that he could not achieve great things, but he was always passionate about physics. Although he was only a technician in the patent office, he studied physics in his spare time and finally published his special theory of relativity.