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.
This is a subject I wish I had thought about much earlier in my career. To ensure that your organization continues to deliver results, you need to build a perpetual motion machine that can work well without you. This involves more than the mechanics of your own "stepping out," but the selection and training and governance of the new leaders who "step up," and most importantly, the preservation of the culture and its values.
The best approach I've seen for doing this is what companies and organizations like GE, 3G, and the Chinese Politburo do, which is to build a pyramid-like "succession pipeline" in which the next generation of leaders is exposed to the thinking and decision making of the current leaders so they can both learn and be tested.