Innovation in oil extraction must go hand in hand with environmental stewardship.

I don't believe in good taste. I believe in being honest.

经济周期的福利成本并非周期本身，而是个体无法随时间平滑消费的能力。

路途虽然近，但不走就不能到达；事情虽然小，但不做就不能完成。

True strength comes from inner peace.

The value of a commodity, or the quantity of any other commodity for which it will exchange, depends on the relative quantity of labor which is necessary for its production, and not on the greater or less compensation which is paid for that labor.

There is no lasting hope in violence，only temporary relief from hopelessness.