一个人的价值或价值，就像所有其他事物一样，是他的价格；也就是说，为了使用他的权力而愿意付出的代价。
The value or worth of a man is, as of all other things, his price; that is to say, so much as would be given for the use of his power.
The most important thing in communication is hearing what isn't said.
Efficiency in extraction isn't just good for profits; it's good for the planet.