If we stopped wasting people's time, what would they do with it?

What if we found ourselves building something that nobody wanted? In that case what did it matter if we did it on time and on budget?

Leadership requires creating conditions that enable employees to do the kinds of experimentation that entrepreneurship requires.

Entrepreneurs can't forecast accurately, because they are trying something fundamentally new. So they will often be laughably behind plan - and on the brink of success.

The biggest start-up successes - from Henry Ford to Bill Gates to Mark Zuckerberg - were pioneered by people from solidly middle-class backgrounds. These founders were not wealthy when they began. They were hungry for success, but knew they had a solid support system to fall back on if they failed.

The hardest part is the grueling work of constantly being wrong.

In my first start-up, I had an initial advertising budget of $5 per day total. That would buy us 100 clicks per day. At $5 per day, marketing people scoffed and said that is too small to matter. But if you think about it, to an engineer, 100 real humans everyday giving your product a try means you can really start improving.