"Over the years your bodies become walking autobiographies, telling friends and strangers alike of the minor and major stresses of your lives."

"The brain's calculations do not require our conscious effort, only our attention and our openness to let the information through. Although the brain absorbs universes of information, little is admitted into normal consciousness."

"Real progress in understanding nature is rarely incremental. All important advances are sudden intuitions, new principles, new ways of seeing."

"Fear is a question: What are you afraid of, and why? Just as the seed of health is in illness, because illness contains information, your fears are a treasure house of self-knowledge if you explore them."

"We should all grow our own food and do our own waste processing, we really should."

"But when I really look back on my life, being really honest about it and now that I've got the chance to travel the world, seeing how a lot of little kids grow up - my life wasn't so bad."

"Where do we say that a cell became a blade of grass, which became a starfish, which became a cat, which became a donkey, which became a human being? There's a real lack of evidence from change from actual species to a different type of species."

"We will have to continue to improve our human intelligence system-something that was, unfortunately, lacking in the years which led up to September 11. This is going to be a continuing process of change."