“It is the general opinion that with age must come decrepitude, that its inevitable accompaniments are wigs, spectacles, ear trumpets, false teeth, weak knees, asthma, neuralgia and rheumatism. This is by no means the case. I know several old gentlemen on the shady side of eighty who read without spectacles, whose hearing is as keen as a rabbit's, who can walk as briskly as most men of forty, and have as keen a zest as ever in all there is in life worth enjoying.”