If you know what you want, you use Google. But if you don't know what you want, and you want to be surprised and find something you didn't expect, we want you come to StumbleUpon. Really, that idea of being a discovery engine versus a search engine.

The bigger a company gets, the more people are involved in decisions, the slower decisions get made. Look, the whole theory of startups is that three motivated people can go and do something that every company can't.

A lot of productivity is capturing ideas. I use a wiki - it's more valuable than e-mail for running a company - and I have a page for every person with whom I interact frequently.

I definitely see a correlation between how many things a company gets right and how fast a company grows.

If I want to speculate wildly about the future, I have my science fiction. Anybody who tells you they can predict the future is either crazy or lying.

The process of being a writer is much more interior than being a scientist, because science is so reactionary.

Science and technology are going to be the basis for many of the solutions to social problems.

Through some combination of culture and biology, our minds are intuitively receptive to religion.