写作是一种勇气的行为，是对宇宙沉默的挑战。

Every fish we farm sustainably is a step toward a healthier planet.

"The most profound truths are found in contradictions."

The discovery of exoplanets has opened a new window on the universe, allowing us to explore worlds beyond our solar system.

Your smarts will come in handy because you will travel in a land of marvels. We humans -- plodding as we are -- will astonish ourselves. We'll invent ways to generate clean energy and a lot of it. Atom by atom， we'll assemble tiny machines that will enter cell walls and make repairs. This month comes the extraordinary but also inevitable news that we've synthesized life. In the coming years， we'll not only synthesize it， but we'll engineer it to specifications. I believe you'll even see us understand the human brain. Jules Verne， Mark Twain， Galileo， Newton -- all the curious from the ages would have wanted to be alive most of all right now. As a civilization， we will have so many gifts， just as you as individuals have so many individual gifts as you sit before me.

True innovation solves real problems, not just creates novelty.

Success is a journey, not a destination.

L'amour est aveugle, et la raison est son guide.

Always plan for the worst and hope for the best.

数学不是一项观赏性运动；要理解它，必须积极参与其中。