电报不仅是一项发明，而且是团结人类的手段。
真相藏在词语之间的沉默里。
Every discovery in science opens up a new set of questions, and that's what makes it so exciting.
Model checking is a powerful tool for verifying the correctness of hardware and software systems.
统一指挥意味着员工应该只接受一个上级的命令。