To live is to be constantly surprised by the unexpected.
Understanding the real lives of the poor is the first step toward designing effective policies to help them.
The limits of the possible can only be defined by going beyond them into the impossible.
最好的書是改變你思維方式的書。
地球在所有方向上都是相同的,人類在任何地方都直立其上。
The key to nudge is to make it easy for people to make better choices.