We cannot experimentally map out the brain. It's just too big. In a piece of the brain the size of a pinhead there are 3,000 pathways like a city with 3,000 streets.

The brain builds a version of the universe and projects this version of the universe like a bubble all around us. So I can say with some certainty, 'I think therefore I am.' But I cannot say, 'You think therefore you are,' because you are within my perceptual bubble.

We cannot kill or capture our way out of an industrial-strength insurgency.

Justice is such a fine thing that we cannot pay too dearly for it.

A meticulous virtual copy of the human brain would enable basic research on brain cells and circuits or computer-based drug trials.

We cannot wish for that we know not.