数学家的工作大多是孤独的追求，但它建立在许多其他人的工作之上。
A mathematician's work is mostly a solitary pursuit, but it builds on the work of many others.
In crowds it is stupidity and not mother-wit that is accumulated.
过去是一面镜子，我们在其中看到自己的倒影。
"Writing is a way of thinking, it's a way of working things out."
Auctions are a microcosm of how markets function—information, competition, and incentives all interact.
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."