There's no question that as science, knowledge and technology advance, that we will attempt to do more significant things. And there's no question that we will always have to temper those things with ethics.

I said Ted Cruz has been lying because if you say something that isn't true, and you say it over and over again, and you know that it's not true, there's no other word for it.

There's no such thing as useless knowledge. You never know what doors it's going to open up for you.

A lot of people simply don't realize their potential because they're just so risk adverse. They just don't want to take the risk.

Call it whatever you need to call it to make it feel good to you. But the fact of the matter is, I've been in lots of place growing up and listening to people tell great tales of sexual conquest. It is an immature thing to do -

I'm the only one to separate siamese twins.The only one to operate on babies while they were still in mother's womb, the only one to take out half of a brain.But I'm very hopeful that I'm not the only one who's willing to pick up the baton of freedom, because freedom is not free, and we must fight for it every day. Every one of us must fight for it, because we're fighting for our children and the next generation.

Some people say you're weak because, you know, you're not loud and you're not boisterous and you're not rude. But the fact of the matter is, look and see what I've done. And that speaks volumes about strength.