Paul Davies

A permanent base on Mars would have a number of advantages beyond being a bonanza for planetary science and geology. If, as some evidence suggests, exotic micro-organisms have arisen independently of terrestrial life, studying them could revolutionise biology, medicine and biotechnology.

The way life manages information involves a logical structure that differs fundamentally from mere complex chemistry. Therefore chemistry alone will not explain life's origin, any more than a study of silicon, copper and plastic will explain how a computer can execute a program.

The way to activate the seeds of your creation is by making choices about the results you want to create. When you make a choice, you activate vast human energies and resources, which otherwise go untapped.

From an actor's point of view, you never really like to hope that anything will go beyond the pilot. I'd always say to my agent every time I filmed a pilot, 'Great! Well, I'll see you at pilot season.'