技术并不重要。重要的是你对人有信心，认为他们本质上是善良和聪明的，如果你给他们工具，他们会做出美妙的事情。
Technology is nothing. What's important is that you have a faith in people, that they're basically good and smart, and if you give them tools, they'll do wonderful things with them.
科学是一种探索和理解世界的方式。
Understanding the real lives of the poor is the first step toward designing effective policies to help them.
Data structures are the backbone of efficient algorithms.
数学的语言是普遍的，超越了文化和语言的障碍。
可持续性不是一种选择；它是我们对后代的责任。