文学是发现普通人身上非凡之处的艺术，用普通的语言表达非凡的东西。

Don’t fear failure—fear being in the same place next year as you are today.

量子力学的本质不在于描述粒子的行为，而在于描述我们对粒子认知的行为。

The market is always right, but it doesn't always reflect the true value of a company.

Courage doesn’t mean you don’t get afraid. Courage means you don’t let fear stop you.

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.