You can't just keep doing what works one time, everything around you is always changing. To succeed, stay out in front of change.

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.

If you’re afraid to fail, then you’re probably going to fail.

挑战让我们成长；用勇气和决心去迎接它们。

Get rich or die trying.

那些疯狂到认为自己能改变世界的人，才能真正改变世界。