If debugging is the process of removing software bugs, then programming must be the process of putting them in.

没有希望地吃面包仍然是慢慢地饿死。

Technology is a tool; users are the core.

On marketing: "In the old world， you devoted 30% of your time to building a great service and 70% of your time to shouting about it. In the new world， that inverts."

The key to successful market design is anticipating how participants will behave under different rules.

I think the best moments in my career are the ones where I'm just completely surprised by something.

每一个人都应当为自己的行为负责。