Model checking is a powerful tool for verifying the correctness of hardware and software systems.

艺术中没有必须，因为艺术是自由的。

每一颗种子都有改变世界的潜力。

"The best leaders are those who can listen as well as they can speak."

对于忠告，你所能做的，就是把它奉送给别人，忠告从来就不是给自己准备的。