A ship in port is safe, but that's not what ships are built for.

The theatre is the most immediate way in which a human being can share with another the sense of what it is to be a human being.

数学是给不同事物起相同名字的艺术。

Language is a skin: I rub my language against the other. It is as if I had words instead of fingers, or fingers at the tips of my words.