Magic's about understanding - and then manipulating - how viewers digest the sensory information.

The place we want to explore unpleasantness in the real world is in art.

People do not come to a Penn & Teller show to see a magic show. They just don't. They come to see weird stuff that they can see no place else, that will make them laugh and make the little hairs stand up on the backs of their necks.

Indian street magic tends to be very gory, blood and guts. One trick is for a magician to take a knife and appear to cut his kid's head almost off. The magician then says to the crowd, 'Well I can continue to cut off my son's head or you can all give me some money.' Then he wanders around and takes 10 rupees from everyone and restores his son.

The scientific community should work as hard as possible to address major issues that affect our everyday lives such as climate change, infectious diseases and counterterrorism; in particular, 'clean energy' research deserves far higher priority. And science and technology are the prime routes to tackling these issues.

I think philosophers can do things akin to theoretical scientists, in that, having read about empirical data, they too can think of what hypotheses and theories might account for that data. So there's a continuity between philosophy and science in that way.

The art world is a very prissy little thing over in the corner, while the major cultural forces are being determined by techno science.

It is rather fantastic to realize that the laws of physics can describe how everything was created in a random quantum fluctuation out of nothing, and how over the course of 15 billion years, matter could organize in such complex ways that we have human beings sitting here, talking, doing things intentionally.