The true discovery of America is before us. The true fulfillment of our spirit, of our people, of our mighty and immortal land, is yet to come.

The best and most beautiful things in the world cannot be seen or even touched - they must be felt with the heart.

Success is not final, failure is not fatal: it is the courage to continue that counts.

I have the same goal I've had ever since I was a girl. I want to rule the world.

I'm blessed to do what I love.

你不必具备量子力学所要求的能力。你只需要知道一些简单的事情，并真正了解它们。

千里之行，始于足下。