柠檬问题发生的原因是卖家比买家更了解产品，从而导致市场失灵。
The magical thing about this network is not just that it collapses distance and makes everyone your neighbor. It also dramatically increases the number of brilliant minds we can have working together on the same problem--and that scales up the rate of innovation to a staggering degree.
不当是风趣的精髓。
We are all responsible for the world we have created, and therefore we must work together to change it.
译文：立下难以实现的志向，才能吃别人不可能吃的苦，做别人不能做的事，千秋功业，才有得指望；对人对事若发现错误而不忍心去指责、纠正，那么必然会因为不忍心去说而造成祸害。
领导力意味着今天做出艰难的决策，以便明天让所有人受益。