Ray Kurzweil

No matter what problem you encounter, whether it's a grand challenge for humanity or a personal problem of your own, there's an idea out there that can overcome it. And you can find that idea.

By 2029, computers will have emotional intelligence and be convincing as people.

What we spend our time on is probably the most important decision we make.

If you take Darwin's theory and extend it to its logical end, it can be used to justify a number of very horrendous things.

We define ourselves as intelligent. That's odd, because we're doing the definition - We're creating our own definition and saying, 'We are intelligent!'

I think that, in almost all human beings, there is buried a profound tribal instinct that makes us very susceptible to being aroused to patriotic fervour.