"Writing is a way of talking without being interrupted."

数学是科学的钥匙和门。

If you do what you’ve always done, you’ll get what you’ve always gotten.

The joy of mathematics is in the discovery of patterns and the understanding of their implications.

我不是一个恶棍，我是一个现实主义者。

你有敌人？很好。这说明在你的生命中的某个时刻，你曾经呐喊过。