All I know is that I don't know nothing.

In the AI era, cloud computing is the foundation of an intelligent world.

Even in the grave， all is not lost.

I am the only person in the world I should like to know thoroughly; but I don’t see any chance of it just at present.

We live in a world of shadows, and what we call reality is only the shadow of a shadow.

每一项法律都是对自由的侵犯。