发现可能性的唯一方法是超越它们进入不可能。
At the end of the day it's not about what you have or even what you've accomplished... it's about who you've lifted up, who you've made better. It's about what you've given back.
The United States is the most powerful country in the world, and it will remain so for the foreseeable future.
We are made of star stuff.
The only time you should ever look back is to see how far you've come.