The best ideas often come from challenging the status quo.
The joy of solving a mathematical problem is unparalleled; it is a moment of pure intellectual triumph.
我认为你不能比较网球的不同时代。每个时代都有其伟大的球员。
The best way to predict the future is to create it.
行为法则可以从基本的生理原则中推导出来。