我们必须始终努力做正确的事，即使这很困难。

我试图创作足够开放的作品，让人们能够赋予它自己的意义。

The world is a tragedy to those who feel, but a comedy to those who think.

The art of doing mathematics consists in finding that special case which contains all the germs of generality.

未来属于那些今天种树的人。