I generally disagree with most of the very high margin opportunities. Why? Because it's a business strategy tradeoff: the lower the margin you take, the faster you grow.

Not thinking it's possible is a failure of imagination.

If everyone played it safe, we wouldn't get anywhere.

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.

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

Electric cars are coal-powered cars. Their carbon emissions can be worse than gasoline-powered cars.

We don't need a fuel that's cleaner, we need a fuel that happens to be cleaner, but is half the price of oil.