What is my happiness? In fact, after so many years, I finally know what my happiness is! My happiness lies in that when I am thinking about a puzzling problem, such as Riemann hypothesis, I have experienced various feelings in these problems, and these feelings have their own place in my mind, so when I think about this problem, I will think from different angles. There are thousands of explanations for a mathematical problem. Just like science, the answers may be the same or different, but different answers may be right, so these great mathematicians and scientists must be powerful.

When I am happy, I fantasize about new laws, new theories and new discoveries. At this moment, I think that math problem is mine. The reason for happiness has finally been solved. The answer is that I imagine my laws are established, or I have solved the top ten math problems in the world. I can only wait and work hard for these incredible things.

Mercedes-Benz always speeds up when I enjoy happy event, and Mercedes-Benz is faster than anyone else, because when I think about why the negative sign of a linear equation and a quadratic equation should become a positive sign when crossing the equal sign? Why is the square of side A plus the square of side B equal to the square of side C in Pythagorean theorem? These formulas beyond ordinary people's imagination are all because people who love mathematics and regard mathematics as happiness can identify, establish and answer puzzling mathematical imagination. My happy moments make me happy, so does your happiness make you happy?