"To define is to limit."

"To choose doubt as a philosophy of life is akin to choosing immobility as a means of transportation."

A good abstraction is one that emphasizes the essential and suppresses the irrelevant.

我想跑一场好比赛，激励很多人。

作家的职责是照亮人类灵魂的阴影。

The most important skill for a computer scientist is problem solving. The ability to formulate problems, think creatively about solutions, and express a solution clearly and accurately.

只看到别人的一切坏处，是恶的根源；能明察自己的一切缺失，才是所有善的根本。