The map is not the territory... The only usefulness of a map depends on similarity of structure between the empirical world and the map.

If we, who live outside asylums, act as if we lived in a fictitious world- that is to say, if we are consistent with our beliefs- we cannot adjust ourselves to actual conditions, and so fall into many avoidable semantic difficulties. But the so-called normal person practically never abides by his beliefs, and when his beliefs are building for him a fictitious world, he saves his neck by not abiding by them. A so-called "insane" person acts upon his beliefs, and so cannot adjust himself to a world which is quite different from his fancy.

We see what we see because we miss all the finer details.

Whatever you might say the object "is", well it is not.

Man's achievements rest upon the use of symbols.... we must consider ourselves as a symbolic, semantic class of life, and those who rule the symbols, rule us.

It seems evident that everything which exists in nature, is natural, no matter how simple or complicated a phenomenon it is; and on no occasion can the so-called 'supernatural' be anything else than a completely natural law, though it may, at the moment, be above and beyond the present understanding.

Mathematics and logic have been proved to be one; a fact from which it seems to follow that mathematics may successfully deal with non-quantitative problems in a much broader sense than was suspected to be possible.