The study of formal languages and automata is essential for understanding the theoretical underpinnings of computer science.

"Listening is an act of participation."

你的时间有限，不要浪费在过别人的生活上。

生活是一系列错过的联系和未解答的问题。

To one who has faith, no explanation is necessary. To one without faith, no explanation is possible.

能源行业必须适应和发展，以应对21世纪的挑战。