If transportation technology was moving along as fast as microprocessor technology, then the day after tomorrow I would be able to get in a taxi cab and be in Tokyo in 30 seconds.

A novice was trying to fix a broken Lisp machine by turning the power off and on. Knight, seeing what the student was doing, spoke sternly: "You cannot fix a machine by just power-cycling it with no understanding of what is going wrong." Knight turned the machine off and on. The machine worked.

If you hear an expert talking about the Internet and saying it [does] this, or it will do that, you should treat it with the same skepticism that you might treat the comments of an economist about the economy or a weatherman about the weather.

I'm as fond of my body as anyone, but if I can be 200 with a body of silicon, I'll take it.

Global consciousness is that thing responsible for deciding that pots containing decaffeinated coffee should be orange.

People are mostly focused on defending the computers on the Internet, and there's been surprisingly little attention to defending the Internet itself as a communications medium. And I think we probably do need to pay some more attention to that, because it's actually kind of fragile.

Design: holding conflicting ideas in your head without difficulty