At IMVU, the cost of customer acquisition through our five-dollar-a-day AdWords campaign was less than twenty-five cents. Our revenue from those same customers was more than a dollar.

Don’t be in a rush to get big. Be in a rush to have a great product.

The only way to win is to learn faster than anyone else.

The minimum viable product is that version of a new product which allows a team to collect the maximum amount of validated learning about customers with the least effort.

Every startup has a chance to change the world, by bringing not just a new product, but an entirely new institution into existence.

A startup is a human institution designed to deliver a new product or service under conditions of extreme uncertainty.

Lean thinking defines value as providing benefit to the customer; anything else is waste.

If we do not know who the customer is, we do not know what quality is.

Innovation is a bottoms-up, decentralized, and unpredictable thing, but that doesn’t mean it cannot be managed.

Zero invites imagination, but small numbers invite questions about whether large numbers will ever materialize.

As you consider building your own minimum viable product, let this simple rule suffice: remove any feature, process, or effort that does not contribute directly to the learning you seek.

Freedom is the only worthy goal in life. It is won by disregarding things that lie beyond our control.

Summer is the time for squabbles. In winter, we must protect one another, keep each other warm, share our strengths.

There was a long hard time when I kept far from me the remembrance of what I had thrown away when I was quite ignorant of its worth.

At the age of 80, I'm becoming a visual artist. This could be my rebirth.

Ye are better than all the ballads That ever were sung or said; For ye are living poems, And all the rest are dead.

Do not give way to useless alarm; though it is right to be prepared for the worst, there is no occasion to look on it as certain.

Beware the Jabberwock, my son The jaws that bite, the claws that catch! Beware the Jubjub bird, and shun The frumious Bandersnatch!

But just the fact that he was sparkling leads me to doubt everything that happened.

Why do Sunnis kill Shiites? How do they tell the difference? They all look the same to me.

I sincerely believe that if Bush and Cheney recognized the full humanity of other people's mothers around the world, they wouldn't commit the crimes they commit.