Mathematics is not a deductive science—that's a cliché. When you try to prove a theorem, you don't just list the hypotheses and then start to reason. What you do is trial and error, experimentation, guesswork.
"To love at all is to be vulnerable."
历史学家的任务是复活那些被时间湮没的声音。
唱歌是我表达爱的方式。