抽象允许一种自由，而具象有时无法做到。

The most important thing in trading is to manage your risk.

Every life leaves behind a trail of evidence; the biographer is the detective who follows it.

不去尝试办不到的事情, 不去追求得不到的东西, 不居于不能持久的地位, 不推行不可重复的政策。

地平线是最终的建筑参考。