The coal industry must evolve to meet modern environmental standards, or it will become obsolete.
The true history of the world is the history of great men.
The goal of cryptography is to make it so that the cost of breaking the system exceeds the value of the information protected.
变化是不可避免的,你如何应对决定了你的成功。
The only way to have a good day is to start it with a positive attitude.