The coal industry is not just about digging the ground; it's about powering the future.

The world is a very malleable place if you know what you want.

Wherever you go, you take yourself with you.

The international system is inherently competitive, and states are constantly trying to outmaneuver each other.

知足是天然的财富，奢侈是人为的贫困。

The beauty of the genetic code lies in its universality; it is shared by all known forms of life.

我们都在阴沟里，但仍有人仰望星空。

Efficient market theory is correct in that there are no gross inefficiencies， but we look at anomalies that may be small in size and brief in time.

要理解心智，我们必须先理解它的进化目的。