I didn't know the full dimensions of forever but I knew it was longer than waiting for Christmas to come.

Normally street children are shown in terms of the tragedy of their lives - which is true - but there's also another dimension: their wisdom dignity and enormous capacity for survival.

I've got a real sense of three-dimensional geometry. I can look at a flat piece of fabric and know that if I put a slit in it and make some fabric travel around a square then when you lift it up it will drape in a certain way and I can feel how that will happen.

I can mention many moments that were unforgettable and revelatory. But the most single revelatory three minutes was the first time I put on scuba gear and dived on a coral reef. It's just the unbelievable fact that you can move in three dimensions.

I don't particularly enjoy watching films in 3D because I think that a well-shot and well-projected film has a very three-dimensional quality to it so I'm somewhat sceptical of the technology.

Looking ahead I believe that the underlying importance of higher education of science of technology of research and scholarship to our quality of life to the strength of our economy to our security in many dimensions will continue to be the most important message.

It's become another dimension to who I am. I don't think Sports Illustrated is going to be wanting me. But who cares? I'm at a different place in my life.

What is a society without a heroic dimension?

Science by itself has no moral dimension. But it does seek to establish truth. And upon this truth morality can be built.

There is a fifth dimension beyond that which is known to man. It is a dimension as vast as space and as timeless as infinity. It is the middle ground between light and shadow between science and superstition.