Speech is a kind of action， and our words are the tools we use to perform it.
言辞是一种行动，我们的词汇是我们用来执行这种行动的工具。
The only way to know if something is art is to see if it changes the way you think.
The novel is the great art form of the human condition.
引力解释了行星的运动，但它不能解释谁让行星运动。