一个领导者的遗产是由他们行动的可持续性来衡量的。
The greatest gift you can give someone is your time, because you are giving them a portion of your life that you will never get back.
实现任何有价值的事情的三个重要要素是:努力工作、坚持不懈和常识。
We have really everything in common with America nowadays, except, of course, language.
数学不仅仅是人类的发明;它具有一种独立于我们而存在的深刻现实。