We come now to the question: what is a priori certain or necessary, respectively in geometry (doctrine of space) or its foundations? Formerly we thought everything; nowadays we think nothing. Already the distance-concept is logically arbitrary; there need be no things that correspond to it, even approximately.
It was as though all my hostilities, anxieties, and conflicts were in one ball that was flying away into space, farther from me all the time, leaving me content with myself