Make your team feel respected, empowered and genuinely excited about the company’s mission.

I never perfected an invention that I did not think about in terms of the service it might give others… I find out what the world needs, then I proceed to invent.

The greatest reward in becoming a millionaire is not the amount of money that you earn. It is the kind of person that you have to become to become a millionaire in the first place.

Everything started as nothing.

Running a start-up is like eating glass. You just start to like the taste of your own blood.

Lend your friend $20. If he doesn’t pay you back then he’s not your friend. Money well spent.

It takes humility to realize that we don’t know everything, not to rest on our laurels and know that we must keep learning and observing. If we don’t, we can be sure some startup will be there to take our place.

How you climb a mountain is more important than reaching the top.

A general is just as good or just as bad as the troops under his command make him.

User experience is everything. It always has been, but it’s undervalued and underinvested in. If you don’t know user-centered design, study it. Hire people who know it. Obsess over it. Live and breathe it. Get your whole company on board.