语法和语义之间的相互作用是形式语言研究的核心。

The sun is the soul of the universe, and the earth is its body.

最伟大的旅程不是用英里衡量的，而是用那些让我们屏息的时刻。

A wealth of information creates a poverty of attention.

"The wise man learns more from his enemies than the fool from his friends."

记忆是我们以为已经忘记的东西；也是我们以为会记住的东西。