开采效率不仅对利润有好处，对地球也有好处。
Efficiency in extraction isn't just good for profits; it's good for the planet.
最强大的工具是那些赋予他人力量的工具。
最好的数学是永恒的。
【译文】宰相应从基层官员提拔，猛将须从士兵中成长。
Investors should avoid making decisions based on short-term market movements.
Get rich or die tryin'.
自由确实珍贵；如此珍贵以至于必须谨慎配给。