A mathematician is a device for turning coffee into theorems.

In our reasonings concerning matter of fact， there are all imaginable degrees of assurance， from the highest certainty to the lowest species of moral evidence.

The key is to enjoy the journey, not just the destination.

循环经济不是一种选择——对于希望在未来十年蓬勃发展的行业来说，这是唯一的前进方向。

生气时，先数到十再说话；如果非常生气，就数到一百。

我不相信写作障碍，我相信懒惰。