True growth happens when you step outside your comfort zone and embrace change.
Science is a wonderful thing if one does not have to earn one's living at it.
路是通过行走创造的。
Those who are willing to give up freedom for security will eventually lose both.
The beauty of physics lies in its ability to explain the complex with the simple.
One of the greatest ways to avoid trouble is to keep it simple...the system often goes out of control.