I've reflected a lot on the concept of thinking from First Principles. I've been reading about the subject but I can't find good references. So far, I'm able to summarize what I've found to the latter question: "What are we sure is true about this?" I was wondering if there was more to it. I believe this is a Physic Framework and I hope this is the right place to ask the latter questions. Are there reference anyone would recommend on this (may it be a passage of a certain book or some websites/blogs)? Are you using this mental framework regularly? When?