Every building is a prototype; no two are exactly alike.

The most important thing in acting is honesty. If you can fake that, you've got it made.

面临大事与难事，可看出一个人的责任；处顺境逆境，可看出一个人的胸襟气度；遇喜事怒事，看一个人的涵养；与同辈相处，可看一个人的见识。

The best way to predict the future is to invent it.

In machine learning, the trade-off between bias and variance is crucial for achieving good generalization.

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.

"The past is a script we can’t stop rewriting."