To understand the arithmetic of algebraic varieties is to understand the symmetries hidden within them.
除非我能看到50%的回报,否则我从不买股票。
The writer must believe that what he is doing is the most important thing in the world. And he must hold to this illusion even when he knows it is not true.
I’m a very positive thinker, and I think that is what helps me the most in difficult moments.