Principles are ways of successfully dealing with reality to get what you want out of life.
Ray Dalio, one of the world’s most successful investors and entrepreneurs, cites principles as his key to success.
Too many people get hired because they are just "one of those." If you're looking for a plumber you might be inclined to fill the job with the first experienced plumber you interview, without ascertaining whether he has the qualities of an outstanding plumber. Yet the difference between an ordinary plumber versus an outstanding one is huge. When reviewing any candidate's background, you must identify whether they have demonstrated themselves to be extraordinary in some way. The most obvious demonstration is outstanding performance within an outstanding peer group. If you're less than excited to hire someone for a particular job, don't do it. The two of you will probably make each other miserable.