At last he came back to Harvey. "He looks ill," he said, which is true. His honestly-painted knuckles make diagnosis easy. My friend thought that this great man would probably have dosed him well, and, as he added, would not have bothered him about too much sugar, nor forbidden champagne. I had to reply that whatever ills were in the England of that day,--and there was much dyspepsia and much gout,--sugar was the luxury of the rich, and anything but as abundant as it is to-day, when we consume annually fifty-six pounds per head or per stomach. I told him that in all ages the best of us would have dwelt most on diet and habits of living, and that Harvey was little likely to have been less wise than his peers, and he has had but few. Then he said it would be curious to put on paper a case, and to add just what a doctor in each century would have ordered. The idea struck me as ingenious and fertile. I could wish that some one would do this thing. It would, I think, be found that the best men of every time were most apt to consider with care the general habits of their patients as to exercise and diet, and to rely less than others on mere use of drugs. As to this matter, one learns more from men's lives than from their books, but nowadays care as to matters of hygiene has become in a valuable degree the common wisdom of a large part of my profession. Surveying our vast gains, we are a little apt to undervalue the men of older days, and no lesson is wiser than sometimes to go back and see how the best of them thought and acted amidst the embarrassments of imperfect knowledge.