自动机和形式语言的研究对于理解计算的极限是基础性的。
The study of automata and formal languages is fundamental to understanding the limits of computation.
文学不会改变世界，但可以改变那些将改变世界的人。
解释：语言是用来充分表达作者心志的，文采是用来充分发挥语言功能的。
You may have the worst of your worries when you most appear to be at ease.
Leadership is about vision, courage, and the willingness to take calculated risks.