写这个的源起是因在看行业分析的时候come across。觉得这条法则对自己有诸多用处，多家留心可以纠正自己的很多分析框架的问题。
I think it’s important to reason from first principles rather than by analogy.
The normal way we conduct our lives is we reason by analogy.
[With analogy] we are doing this because it’s like something else that was done, or it is like what other people are doing.
[With first principles] you boil things down to the most fundamental truths…and then reason up from there.
--Elon Musk
“我在想存在一种好的思维框架（a good framework for thinking）,那是物理学的东西，你知道，有点儿像第一原理推理（first principles reasoning），总体来讲，我认为存在…将事情缩减至其根本实质，并从那里开始向上理论，和类推推理刚好相反。”
