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

人总是比自己知道的自己更多。他不是一成不变的，而是一个过程。

Happiness is not about getting what you want all the time. It’s about loving what you have and being grateful for it.

Perception is the result of the activity of the five senses; through sensation, we come to know the world.

【译文】 孔子说：“温习旧知识时，能有新收获，就可以做老师了。”