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.

Leadership is about making others better as a result of your presence and making sure that impact lasts in your absence.

我们会死。那可能是生命的意义。但我们使用语言。那可能是我们生命的尺度。

"To love without knowing how to love wounds the person we love."

如果你不偶尔失败，你就没有在做任何非常创新的事情。