非独国有染，士亦有染。
不只是国家有染的问题，对士而言也有受到熏染的问题。
我们都被自己过去的影子所困扰。
The signal of human influence on climate has emerged from the noise of natural variability.
Simple can be harder than complex: You have to work hard to get your thinking clean to make it simple.
创新不是对每件事都说“是”，而是对所有非关键特性说“不”。
We should forget about small efficiencies, say about 97% of the time: premature optimization is the root of all evil.