A startup is a temporary organization designed to search for a repeatable and scalable business model.

Greatest risk is not development of new product, but development of customers and markets

Unless you have tested the assumptions in your business model first, outside the building, your business plan is just creative writing.

The world is run by those who show up not those who wait to be asked.

There are no facts inside the building so get the hell outside.

Using the Product Development Waterfall diagram for Customer Development activities is like using a clock to tell the temperature. They both measure something, but not the thing you wanted.

Startups don’t fail because they lack a product; they fail because they lack customers and a profitable business model.

Build and they will come’ is not a strategy, it’s a prayer.

The company that consistently makes and implements decisions rapidly gains a tremendous, often decisive, competitive advantage.

In a startup no facts exist inside the building, only opinions.

A business model describes how your company creates, delivers and captures value.

Discipline begins where you are, and the key to sustaining the level of discipline you need lies in developing daily habits and routines which mirror the life you want to have.

When I read something by someone... I like to dive in his world as much as possible.

People didn't think animals thought or remembered or had minds! They most certainly do: any pet owner knows more than a lot of scientists about animals.

I want to light the lights of patriotism.

even though the dead are beyond our touch, they remain fully dimensional, fully capable of affecting our decisions and quandaries.

One wastes so much time, one is so prodigal of life, at twenty! Our days of winter count for double. That is the compensation of the old.

It's OK showing yourself some love.

the science of control and communication in the animal and the machine

Fear is never a reason for quitting; it is only an excuse.

I have never been one of those who cares about happiness. Happiness is a strange notion. I am just not made for it. It has never been a goal of mine; I do not think in those terms.