The brain happens to be a meat machine.

Within 10 years computers won't even keep us as pets.

No computer has ever been designed that is ever aware of what it's doing; but most of the time, we aren't either.

Common sense is not a simple thing. Instead, it is an immense society of hard-earned practical ideas - of multitudes of life-learned rules and exceptions, dispositions and tendencies, balances and checks.

It would be as useless to perceive how things 'actually look' as it would be to watch the random dots on untuned television screens.

A couple of hundred years from now, maybe [science fiction writers] Isaac Asimov and Fred Pohl will be considered the important philosophers of the twentieth century, and the professional philosophers will almost all be forgotten, because they're just shallow and wrong, and their ideas aren't very powerful.

When David Marr at MIT moved into computer vision, he generated a lot of excitement, but he hit up against the problem of knowledge representation; he had no good representations for knowledge in his vision systems.