A good mathematician is one who can see analogies between theorems; a great mathematician is one who can see analogies between analogies.

Reality is always richer and more complex than fiction.

You are never too old to set another goal or to dream a new dream.

最好的管理是一门真正的科学，建立在明确的法律、规则和原则基础上。

不信你短短观察几天，就不如初次的印象好了。

死者并未离去。他们只是不在此处。