对于任何国家来说，最大的幸福是将最高权力从少数统治者手中收回，交到众多被统治者手中。

生存斗争是生命的本质。

The Liskov Substitution Principle is a fundamental concept in object-oriented programming, stating that objects of a superclass should be replaceable with objects of a subclass without affecting the correctness of the program.

I do not wish them [women] to have power over men; but over themselves.

有时最好的想法来自最意想不到的地方。

设计就是倾听——倾听场地、倾听人们、倾听环境。