Honestly, as far as “guides to life” go, I don’t think anyone’s beaten that in the 2,400 years since. Know thyself—think about who you are, check in with yourself when you do things to see if you’ve made good decisions, remember what you value and care about, understand your integrity, and live a life consistent with that integrity. Nothing in excess—because too much (or too little) of anything will screw you up.
