我认为孩子是最好的评论家，因为他们完全诚实。

Successful people maintain a positive focus in life no matter what is going on around them. They stay focused on their past successes rather than their past failures, and on the next action steps they need to take to get them closer to the fulfillment of their goals rather than all the other distractions that life presents to them.

你无法控制你无法衡量的东西。

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

朗兰兹纲领不是一座完成的建筑，而是一个活生生的、不断发展的框架。