If You're Going To Invest In An

Cultures, For Better Or Worse, Are Very Stable.

Determine What Your Customers Need, And Work Backwards.

Word Of Mouth Is Very Powerful.

If Everything You Do Needs To Work On A Three-year Time Horizon, Then You’re Competing Against A Lot Of People, But If You’re Willing To Invest On A Seven-year Time Horizon, You’re Now Competing Against A Fraction Of Those People, Because Very Few Companies Are Willing To Do That. Just By Lengthening The Time Horizon, You Can Engage In Endeavours That You Could Never Otherwise Pursue. At Amazon We Like Things To Work In Five To Seven Years. We’re Willing To Plant Seeds, Let Them Grow—and We’re Very Stubborn. We Say We’re Stubborn On Vision And Flexible On Details.

What's Dangerous Is Not To Evolve.