It’s not what you do – it’s what you are becoming.

Most of the time you will fail, but you will also occasionally succeed. Those occasional successes make all the hard work and sacrifice worthwhile.

Everybody has to be able to participate in a future that they want to live for. That's what technology can do.

If history is any indication, all truths will eventually turn out to be false.

The word entrepreneur is associated with success and adventure. From my life, the only thing I can tell you that's consistently associated with entrepreneurship is failure, and the only thing consistently associated with invention is frustration. There is a long road between the idea and the reality.

We are in a race between knowledge and catastrophe. If we keep track of what is important, never lower our standards or forget why we are here, we have the ability to determine the fate of the world.

The city needs a car like a fish needs a bicycle.