一个设计良好的系统应该易于使用、易于理解和易于修改。
A well-designed system should be easy to use, easy to understand, and easy to modify.
在任何情况下都要寻找积极的一面。总有一些值得感激的事情。
The true joy of mathematics lies in the act of discovery, not just the result.
"Love is not a thing to be understood, but to be felt."
We triumph without glory when we conquer without danger.