The most important thing in trading is to manage risk.
在数学中，就像在生活中一样，最深刻的发现往往来自于提出最简单的问题。
我唯一能依靠的是自己的感知，而它总是在变化。
Lisp is worth learning for the profound enlightenment experience you will have when you finally get it; that experience will make you a better programmer for the rest of your days, even if you never actually use Lisp itself a lot.
