Francis Collins

The brain is the most complicated organ in the universe. We have learned a lot about other human organs. We know how the heart pumps and how the kidney does what it does. To a certain degree, we have read the letters of the human genome. But the brain has 100 billion neurons. Each one of those has about 10,000 connections.

If you are looking for a needle in a haystack, and somebody has already cataloged all the straw in the haystack, when you get to that needle you will recognize it's different than what was supposed to be there based on all that computerized haystack information that had been predetermined for you.

It's terrifying the way molecular biology has become more and more jargon ridden. But I strongly believe that my book can be read by the intelligent layman. I want everyone who bought a copy of 'A Brief History of Time' to buy a copy of 'Genome'.

It is only when you watch the dense mass of thousands of ants, crowded together around the Hill, blackening the ground, that you begin to see the whole beast, and now you observe it thinking, planning, calculating. It is an intelligence, a kind of live computer, with crawling bits for its wits.