在个体中，疯狂是罕见的；但在团体、党派、国家和时代中，它却是常规。

平静：不要被琐事、普通或者不可避免的事所扰。

The greatest works are those that are still being read long after their authors have died.

Science is not just about finding answers, but also about asking the right questions.

安全是最大的效益，事故是最大的浪费。