1 “... Colloquium. To regret that we could not include contributions from all his well-wishers, critical admirers...”

2 “..., a th heroic, indeed a model, scholar of the first half of the 20 century. He was widely admired as a...”

3 “... and representative assembly of the intersection of two (mathematical!) classes: affectionately respect­ ful admirers...”

4 “... a creative scientist, for his collaboration in bringing this work to completion. We admire his...”