It is now clear that even if we know almost nothing about the historical surrounding world of the first geometers, this much is certain as an invariant, essential structure: that it was a world of things (including the human beings themselves as subjects of this world); that all things necessarily had to have a bodily character although not all things could be mere bodies, since the necessarily coexisting human beings are not thinkable as mere bodies and, like even the cultural objects which belong with them structurally, are not exhausted in corporeal being.