Most of what matters in our lives takes place in our absence.
我们生活中最重要的大部分事情都在我们不在的时候发生。
Every artist is a child of his time, but the great ones are also the parents of the future.
The most important thing in mathematics is to understand the concepts, not just to memorize formulas.
The only service a friend can really render is to keep up your courage by holding up to you a mirror in which you can see a noble image of yourself.
我最喜欢的生活中的事情不花钱。很明显，我们所有人最宝贵的资源是时间。