10 Life-changing Lessons from The ONE Thing by Gary Keller | Book Summary

About this video

Clark Kegley summarizes 10 ideas from The ONE Thing by Gary Keller. He opens with the domino effect: a small domino can topple one 50% larger, so sequenced momentum builds to huge results, just as habits do. Successful people and companies, he notes from the book, focus on one thing — Google on search, Starbucks on coffee — and chasing two rabbits catches neither, though he cautions not to take this as gospel. He covers three myths: multitasking does not exist and wastes time, willpower is a depletable muscle so do the most important work when it is strongest, and the 80/20 principle focuses effort on the vital few. Other ideas include the rubber-versus-glass balls image — work rebounds if dropped, but family, health, friends, and spirit can shatter — Parkinson’s Law that work expands to fill time, so shorten deadlines, and turning a to-do list into a success list by repeatedly narrowing to the one priority. The focusing question — what is the one thing I can do such that by doing it everything else becomes easier or unnecessary? — ties to living by priority, stacking someday goals down to a now goal, and avoiding thieves of time, starting with inability to say no.

Key takeaways

  • Small, sequenced actions compound like falling dominoes, Kegley explains from the book, so start small and build momentum.
  • Focus on one thing at a time; multitasking is presented as an illusion that loses significant productive time.
  • Willpower depletes through the day, so schedule your most important task when willpower is highest.
  • Apply 80/20 and the focusing question to turn a long to-do list into a short success list headed by the single highest-impact item.
  • Protect glass balls — family, health, friends, and spirit — while work is a rubber ball that bounces back, and learn to say no to protect your priority.

Episode details: published June 21, 2016 · 20:24 long. Summary written by Self Growth Videos from the episode itself. Business results and any income figures mentioned are Clark Kegley’s own claims, shared for education — they are not typical or guaranteed.


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