"The past is a foreign country; they do things differently there."
Never stop learning, because the world never stops changing.
Innovation is the ability to see change as an opportunity, not a threat.
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。
You have to say, I am the person who is going to make the difference.
最小作用量原理是物理学的一个统一原理。