"The role of business is to produce goods and services that people value more highly than their cost, and to do so while consuming as few resources as possible."

To know good and evil is not enough； one must also do them.

"The price of power is always high, but the price of powerlessness is higher."

只有到了气候寒冷的时候，才能了解松柏傲霜独立的品格。

"The colony is the place where the project of a new humanity is to be tested, where the dream of a world without borders is to be realized, where the dream of a world without races is to be realized, where the dream of a world without nations is to be realized, where the dream of a world without classes is to be realized."

当你攻击煤炭时，你就是在攻击美国中部地区。