真相很少是纯粹的，也绝不简单。
The truth is rarely pure and never simple.
The interplay between quantum mechanics and gravity is the greatest puzzle of our time, and solving it will unlock the secrets of the universe.
The only limits that exist are the ones in your mind.
最成功的企业是那些能够随着时间的推移而适应和进化的企业。
If you can't fly then run， if you can't run then walk， if you can't walk then crawl， but whatever you do you have to keep moving forward.