The greatest thing in life is to keep your mind young.
人生中最伟大的事情就是保持心态年轻。
A well-designed system should be easy to use, easy to understand, and easy to modify.
领导力意味着今天做出艰难的决定，为更美好的明天铺平道路。
"The past is a shadow that follows us, but it does not have to define us."
The essence of mathematics lies in its freedom.
没有自由的安全，叫做监狱。
人生应为生而食，不应为食而生。