A writer must be willing to take risks.

"Consciousness is always in the service of life."

The deeper you go into mathematics, the more you realize how much remains unknown.

We are what we repeatedly do. Excellence, then, is not an act, but a habit.

I do not wish them [women] to have power over men; but over themselves.

外交是一门艺术，要耐心、智慧和灵活性。