"Heinz von Foerster was a physicist and philosopher, who worked extensively in cybernetics, biology and family therapy…"

"The "second order cyberneticians" claimed that knowledge is a biological phenomenon (Maturana, 1970), that each indiv…"

"Heinz performs the magic trick of convincing us that the familiar objects of our existence can be seen to be nothing …"

"The main theme of this report is a particular facet of the general problem of pre-organization in self-organizing sys…"

"I shall act always so as to increase the total number of choices"

"The world, as we perceive it, is our own invention."

"While in the first quarter of this century physicists and cosmologists were forced to revise the basic notions that go…"

"To remove these one had to account for an “observer” (that is at least for one subject): (i) Observations are not abs…"

"What we need now is the description of the “describer” or, in other words, we need a theory of the observer."

"It seems that cybernetics is many different things to many different people. But this is because of the richness of i…"