I have seen the future, and it is still in the future.

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

Intuition was not just visual but also auditory and kinesthetic. Those who watched Feynman in moments of intense concentration came away with a strong, even disturbing sense of the physicality of the process, as though his brain did not stop with the grey matter but extended through every muscle in his body.

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

In the mind's eye, a fractal is a way of seeing infinity.

We say that time passes, time goes by, and time flows. Those are metaphors. We also think of time as a medium in which we exist.

When information is cheap, attention becomes expensive.