Software is a gas; it expands to fill its container.

The cloning procedure is similar to IVF. The only difference is that the DNA of sperm and egg would be replaced by DNA from an adult cell. What law or principle - secular, humanist, or religious - says that one combination of genetic material in a flask is OK, but another is not?

One of the things that I love to do is travel around the world and look at archaeological sites. Because archaeology gives us an opportunity to study past civilizations, and see where they succeeded and where they failed. Use science to, you know, work backwards and say, 'Well, really, what were they thinking?'

No CEO ever says, 'Damnit, we need to increase research!' I want to encourage them to do that.

We collectively have a special place in our heart for the manned space flight program - Apollo nostalgia is one element, but that is only part of it. American culture worships explorers - look at the fame of Lewis and Clark, for example. The American people want to think of themselves as supporting exploration.

It's impossible that we're alone in the universe. Every time we think we're more special than others, we're proven wrong.

Another random thing I do is the search for extraterrestrial intelligence, or SETI. And you may be familiar with the movie 'Contact,' which sort of popularized that. It turns out there are real people who go out and search for extraterrestrials in a very scientific way.