The boundary between physics and mathematics is not as clear-cut as one might think.
I suppose when they reach a certain age some men are afraid to grow up. It seems the older the men get, the younger their new wives get.
一切都是旧的。没有别的。曾经尝试过，曾经失败过。没关系。再试一次。再失败一次。失败得更好一点。
When you innovate, you’ve got to be prepared for everyone telling you you’re nuts.
If you want to be successful, you have to be willing to fail.
书是你握在手中的一个梦。