The Internet is like a town that leaves its streets unmarked on the principle that people who don't already know don't belong

It is not the amount of knowledge that makes a brain. It is not even the distribution of knowledge. It is the interconnectedness.

Running for president is the new selfie.

Every new medium transforms the nature of human thought. In the long run, history is the story of information becoming aware of itself.

It is significant that one says book lover and music lover and art lover but not record lover or CD lover or, conversely, text lover.

He believed in the primacy of doubt, not as a blemish upon our ability to know, but as the essence of knowing.

For [Richard] Feynman, the essence of the scientific imagination was a powerful and almost painful rule. What scientists create must match reality. It must match what is already known. Scientific creativity is imagination in a straitjacket.