Vanity Metrics Are The Numbers You Want

A Head Start Is Rarely Large Enough To Matter, And Time Spent In Stealth Mode-away From Customers-is Unlikely To Provide A Head Start. The Only Way To Win Is To Learn Faster Than Anyone Else.

Progress In Manufacturing Is Measured By The Production Of High Quality Goods. The Unit Of Progress For Lean Startups Is Validated Learning-a Rigorous Method For Demonstrating Progress When One Is Embedded In The Soil Of Extreme Uncertainty.

When Blame Inevitably Arises, The Most Senior People In The Room Should Repeat This Mantra: If A Mistake Happens, Shame On Us For Making It So Easy To Make That Mistake.

The Lean Startup Method Is Not About Cost, It Is About Speed.

If We Stopped Wasting People's Time, What Would They Do With It?