The study of mathematics is like air or gravity—it is everywhere, and you can't see it, but you know it's there.
数学的研究就像空气或重力——它无处不在,你看不到它,但你知道它在那里。
I don't think I'm a writer who's interested in answers. I'm interested in questions.
The act of writing is an act of optimism.
预测未来的最好方式就是创造未来。
You can tell whether a man is clever by his answers. You can tell whether a man is wise by his questions.