 Feyerabend created spaces in which people could breathe again. He demanded of philosophers that they be receptive to ideas from the most disparate and apparently far-flung domains, and insisted that only in this way could they understand the processes whereby knowledge grows. His listeners were enthralled, and he held his huge audiences until, too ill and too exhausted to continue, he simply began repeating himself. But not before he had brought the house down by writing “Aristotle” in three-foot high letters on the blackboard and then writing “Popper” in tiny, virtually illegible letters beneath it! (Krige 1980, pp. 106–7).