在暴君有权杀死一个国家的权利被证明之前,一个国家在必要时杀死暴君的权利永远不会被怀疑。
The pursuit of happiness is not about chasing after pleasure but about cultivating meaning.
对于已经发生的事,感谢它;对于将要发生的事,说“是”!
The most powerful thing you can be is yourself.
The most profound ideas in mathematics often arise from the simplest observations.