An experienced code-breaker will tell you that in order to figure out what the symbols in a code mean, it's essential to be able to play with them, to rearrange them at will.

What I thought we would do today a little bit is explore this idea of physical thinking, and we're all experts in physical thinking.

I think that it's the opportunity to put tomorrow's technology in the hands of youngsters that will create endless abundance of job opportunities, and with that, everybody can become an expert maker and an expert manufacturer.

She might still have a lot to learn about this world, but she's already an expert at one very important task: to make sense of what she sees.

Equally important is technological development, like prefabrication developed by my colleague Martin Rauch, who is an Austrian artist and expert in earthen structures.

And he is a world expert in performing "The Ursonate, " which is a half-an-hour nonsense poem by Kurt Schwitters, written in the 1920s, which is half an hour of very highly patterned nonsense.

Most of the talks that you've heard in the last several fabulous days have been from people who have the characteristic that they have thought about something, they are experts, they know what's going on.