I usually say what Ireally think. A great mistake nowadays, it makes one so liable to be misunderstood.

睡眠不是奢侈品，而是大脑的必需品。

That’s been one of my mantras—focus and simplicity.Simple can be harder than complex，you have to work hard to get your thinking clean to make it simple.

"Writing is the only profession where no one considers you ridiculous if you earn no money."

创新是一个社会过程，而不仅仅是技术过程。

It's not always rainbows and butterflies, it's compromise that moves us along.

随机实验是因果推理的黄金标准，但它们并不总是可行的。