Appreciate the questions as much as the answers. Stretch beyond what is comfortable. There are folksy expressions polished smooth over time: If you think you can, you can. Experience is the best teacher. Quotes: Those who know don't speak, those who speak don't know (Lao-tzu). Even if you're on the right track, you'll get run over if you just sit there (Will Rogers). Unexpected turns: Listen with your eyes. Good judgment comes from experience and experience comes from bad judgment. Taken together it's the ultimate source of self-improvement.