Efficiency is highly overrated； Goofing off is highly underrated. Regularly scheduled sabbaths， sabbaticals， vacations， breaks， aimless walks and time off are essential for top performance of any kind. The best work ethic requires a good rest ethic.
效率（的重要性）被过度强调了，而放空（的重要性）则被严重低估了。定期的周日安息、职业年假、度假出游、工作日中的茶歇、漫无目的的散步和离开工作的时间，对一切领域获得顶级成就都极其重要。最好的工作，需要有良好的休息作为保障。
Development economics is ultimately about improving people's lives.
Security and privacy are fundamental to the trust that users place in the Internet.
The biggest weapon on the court is your mind.
Success is doing the best you can with what you have.
Collaboration is key—no single entity can solve the world's challenges alone.