One of the mistakes we'll make because we're human beings is to believe that your vision is a fact. That's the natural optimism of human beings.

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.

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

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.

Man is like a breath, his days are like a passing shadow.

Attempting to succeed in a competitive external environment, we can lose track of how to live without anxiety.

Instant gratification is so overrated. It's about the process. It's the difficulty. It's the grind of all of it that you better enjoy. That's what makes it great.

I still have my girlfriends that I grew up with. We went to day care together ... we just feel comfortable with each other. We're honest, we're total goofs.

We are part of the earth and it is part of us ... What befalls the earth befalls all the sons of the earth.

You can trust a crystal ball about as far as you can throw it.

Nihil est sine ratione. There is nothing without a reason.

Elevated locations imply elevated purposes, even in American cities departing as radically as Los Angeles does from the traditional planning patterns of the Eastern Seaboard.

My suspicion is that once you have literacy in place, the readership has not changed very much.

To the worldy man Karma is a stern Nemesis, to the spiritual man Karma unfolds itself in harmony with his highest aspirations.