"The only way to deal with an unfree world is to become so absolutely free that your very existence is an act of rebellion."
我不介意成为一个象征，但我不想成为一个纪念碑。这是有区别的。
真相很少是纯粹的，也从不简单。
The joy of chemistry is in the doing, not just the discovering.
Mathematics is the language with which God has written the universe.
No wise pilot, no matter how great his talent and experience, fails to use his checklist..