Every failure is a valuable experience.
如果技术不能解决实际问题,它就毫无意义。
All animals are equal, but some animals are more equal than others.
数学的美在于它能够以最优雅的方式描述宇宙。
The best way to learn about poverty is to go out and talk to the poor themselves.
Computer science is no more about computers than astronomy is about telescopes.