There are 100 billion neurons in the adult human brain, and each neuron makes something like 1,000 to 10,000 contacts with other neurons in the brain. Based on this, people have calculated that the number of permutations and combinations of brain activity exceeds the number of elementary particles in the universe.

The brain abhors discrepancies.

The visual system of the brain has the organization, computational profile, and architecture it has in order to facilitate the organism's thriving at the four Fs: feeding fleeing, fighting, and reproduction.

In the fetus, or a really young child, all the different brain areas are connected to each other, diffusely. And as the brain develops, the excess connections are turned off, so you get very specialized areas. So most people have really specialized talents. What happens in creative people is this pooling doesn't take place.

One of the first things we teach medical students is to listen to the patient by taking a careful medical history. Ninety percent of the time, you can arrive at an uncannily accurate diagnosis by paying close attention, using physical examination and sophisticated lab test to confirm your hunch (and to increase the bill to the insurance company).

Even today no computer can understand language as well as a three-year-old or see as well as a mouse.

Yet as human beings we have to accept-with humility-that the question of ultimate origins will always remain with us, no matter how deeply we understand the brain and the cosmos that it creates.