在物理学中，我们经常发现最美丽的解决方案来自于最混乱的问题。
In physics, we often find that the most beautiful solutions emerge from the messiest problems.
The mind's work is never done, because adaptation is never complete.
I always try to stay positive, even in tough moments.
For the past 33 years， I have looked in the mirror every morning and asked myself: 'If today were the last day of my life， would I want to do what I am about to do today？' And whenever the answer has been 'No' for too many days in a row， I know I need to change something.
爱是我们唯一心甘情愿拥抱的疯狂。