How do both music and vision build things in our minds? Eye motions show us real objects; phrases show us musical objects. We "learn" a room with bod… - Marvin Minsky

Hearing music is like viewing scenery and... when we hear good music our minds react in very much the same way they do when we see things.

For avoiding nonsense in general, we might accumulate millions of censors. For all we know, this "negative meta-knowledge" — about patterns of thought and inference that have been found defective or harmful — may be a large portion of all we know.

Have you considered perceptrons with many layers? ... We have not found (by thinking or by studying the literature) any other really interesting class of multilayered machine, at least none whose principles seem to have a significant relation to those of the perceptron. To see the force of this qualification it is worth pondering the fact, trivial in itself, that a universal computer could be built entirely out of linear threshold modules. This does not in any sense reduce the theory of computation and programming to the theory of per­ceptrons.