88     A pure fabrication of symptoms and sufferings will never be met with in hypochondriacs, even in the most impatient of them—a comparison of the sufferings they complain of at various times when the physician gives them nothing at all, or something quite unmedicinal, proves this plainly;—but we must deduct something from their exaggeration, at all events ascribe the strong character of their expressions to their excessive sensibility, in which case this very exaggeration of their expressions when talking of their ailments becomes of itself an important symptom in the list of features of which the portrait of the disease is composed. The case is different with insane persons and rascally feigners of disease.