"The only way to learn mathematics is to do mathematics."

The best way to predict the future is to invent it.

我已经失去我的生命中不死的一部分，留下来的也就跟畜生没有分别了。

I think of a hero as someone who understands the degree of responsibility that comes with his freedom.

没有诗歌的民族如同没有星星的夜晚。