Running for president is the new selfie.

It is not true that people who accomplish things don't waste time and that people who waste time don't accomplish things. The very concept is ill-informed. You can't waste time and you can't save time; you can only choose what you do at any given moment.

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

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.

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.

Geniuses of certain kinds - mathematicians, chess players, computer programmers - seem, if not mad, at least lacking in the social skills most easily identified with sanity.

Thinking about language, while thinking _in_ language, leads to puzzles and paradoxes.