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

My name is Usain Bolt and I am the fastest man in the world.

面对各种诱惑而能拒之于外，这才是聪明之举；面对艰难坎坷而能站得稳，这才是意志坚定。

"The challenge in theoretical computer science is not just to solve problems, but to understand why they are hard to solve."

革命道德不是从天上掉下来的。它是在日常斗争中培养，在革命活动中锤炼的。