The choice for mankind lies between freedom and happiness and for the great bulk of mankind, happiness is better.

The best way to measure how much you've grown isn't by inches or the number of laps you can now run around the track, or even your grade point average - though those things are important, to be sure.It's what you've done with your time, how you've chosen to spend your days, and whom you've touched this year. That, to me, is the greatest measure of success.

我一直觉得我最大的资产不是我的身体能力，而是我的心理能力。

I want to liberate America from all the things that hold people back.

化用古人诗句，形容自然之宏大与人力之渺小。