对于系统，翻版的模拟是在控制图中添加一个创建循环的边，而不仅仅是一个附加节点。
For systems, the analogue of a face-lift is to add to the control graph an edge that creates a cycle, not just an additional node.
"Theology is a language of the heart, not of the head."
我不认为自己是个名人，我认为自己是个获得了巨大机会的歌手。