Progress requires both courage and humility.

The sky is not the limit; it is the beginning.

The only way to achieve the impossible is to believe it's possible.

I used to walk down the street like I was a star... I want people to walk around delusional about how great they can be - and then to fight so hard for it every day that the lie becomes the truth.

The most important thing is to stay focused and keep shipping.

物理学的美丽在于它能够用简单的方式解释复杂的事物。