如果你愿意，我们可以回到那个山洞。
we can go back to the cave if you like.
The modern world has made us free, but it has also made us miserable.
未来属于那些能将限制转化为创造性机会的人。
If I fail, I try again, and again, and again. If YOU fail, are you going to try again? The human spirit can handle much worse than we realize. It matters HOW you are going to FINISH. Are you going to finish strong?