The U.S. has fallen well behind Europe in recognizing climate change and the implications of climate change.

I'm a fiscal hawk. I vote against all taxes, but I do believe the environment, and climate change, is a bigger issue than fiscal deficits are as a risk to the nation.

Everybody else is afraid to fail. I do not really care because when I fail, I try something new.

Startups allow technologists and scientists to take risks and change plans in a way that would be frowned upon in a big company. Having said that, big companies will play a key role in certain areas and in partnerships with little companies. Each has its strengths.

Your cellphone has 10 sensors, and your car has 400. But your body has none - that's going to change.

In my view, it’s irreverence, foolish confidence and naivety combined with persistence, open mindedness and a continual ability to learn that created Facebook, Google, Yahoo, eBay, Microsoft, Apple, Juniper, AOL, Sun Microsystems and others.

Spreadsheets are fiction. Believing in what you're doing and what you're building is what's important.