I constantly see people rise in life who are not the smartest, sometimes not even the most diligent, but they are learning machines. They go to bed every night a little wiser than they were when they got up and boy does that help, particularly when you have a long run ahead of you.

种一棵树最好的时间是20年前，其次是现在。

技术变革不是外生的；它是人们对市场激励做出反应而采取的有意行动的结果。