The more you give, the more you receive.

The idea that a bell rings to signal when investors should get into or out of the stock market is simply not credible.

颠覆与科技无关，而与商业模式有关。

释义：福可能变成祸，祸也可能转为福，变化没有尽头。

美本身不是目的，而是问题完美解决的结果。