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.

Customer trust is hard to earn and easy to lose—guard it fiercely.

The past is what you remember, imagine you remember, convince yourself you remember, or pretend you remember.

Topological insulators are a prime example of how theoretical predictions can lead to experimental discoveries that reshape our understanding of the physical world.

The past is not dead; it is not even past.

幸：追求，希求。斯：这样。干：追求。不追求福运，就不会有灾祸；不计较所得，就不会有失去；不追求荣耀，就不会遭到辱没；不企冀美名，就不会遭到诋毁。

最好的胜利是那些看似不可能的胜利。