国家的价值，最终取决于组成它的个体的价值。
The worth of a state， in the long run， is the worth of the individuals composing it.
You can't just keep doing what works one time, everything around you is always changing. To succeed, stay out in front of change.
The causal model is the key to making sense of the world.
我是个糟糕的撒谎者，所以我写歌。