The writer’s duty is to speak for those who cannot.

I have never been able to write a happy play. I can't. I can write a funny play, but I can't write a happy play.

The secret of happiness is freedom, and the secret of freedom is courage.

Civilization is not inherited; it has to be learned and earned by each generation anew.

全球化思考，本地化行动。

Mathematics is not just about numbers, equations, computations, or algorithms: it is about understanding.

The health of our oceans reflects the health of our business.

I'm not comfortable with comfort. I'm only comfortable when I'm uncomfortable.

In business, if you're not moving forward, you're falling behind.