What we call knowledge does not and cannot have the purpose of producing representations of an independent reality, but instead has an adaptive funct… - Ernst von Glasersfeld

...I believe I have come to adopt a cybernetic way of thinking... I became aware of this in the many conversations with students who were worrying about their future and asked for advice. I heard myself telling them that it was far more important to know what one did not want to do, than to have detailed plans of what one did want to do. One day it dawned on me that this was plain cybernetic advice; It is more useful to specify constraints rather than goals. - And then I explained it by adding that in one’s teens or twenties one usually has already discovered a number of things that one cannot stand, whereas it is quite impossible to foresee what, ten or twenty years later, will provide the satisfactions needed to maintain one’s equilibrium.

.. in spite of the fact that it often feels as though the meaning of words and sentences were conveyed to us by the sounds of speech or the signs on a printed page, It is easy to show that meanings do not travel through space and must under all circumstances be constructed in the head of the language users.

From an explorer who is condemned to seek 'structural properties' of an inaccessible reality, the experiencing organism now turns-into a builder of cognitive structures intended to solve such problems as the organism perceives.