理性统治，但仁慈宽恕：前者是法律，后者是特权。

"When you have eliminated the impossible, whatever remains, however improbable, must be the truth."

On motivation: "I strongly believe that missionaries make better products. They care more. For a missionary， it's not just about the business. There has to be a business， and the business has to make sense， but that's not why you do it. You do it because you have something meaningful that motivates you."

The power of abstraction is that it allows us to ignore irrelevant details and focus on the essential aspects of a problem.

The past is a shadow that follows us, always present, always haunting.

政策制定者应乐于根据新证据修正他们的观点。