In former times there was a sort of ambition, as it were, of adopting plants, by bestowing upon them one’s name, a thing that has been done before now by kings even, as we shall have occasion to show:[545] so desirable a thing did it appear to have made the discovery of some plant, and thus far to have contributed to the benefit of mankind. At the present day, however, it is far from impossible that there may be some who will look upon these researches of ours as frivolous even, so distasteful to a life of ease and luxury are the very things which so greatly conduce to our welfare. Still, however, it will be only right to mention in the first place those plants the discoverers of which are known, their various properties being classified[546] according to the several maladies for the treatment of which they are respectively employed: in taking a review of which one cannot do otherwise than bewail the unhappy lot of mankind, subject as it is, in addition to chances and changes, and those new afflictions which every hour is bringing with it, to thousands of diseases which menace the existence of each mortal being. It would seem almost an act of folly to attempt to determine which of these diseases is attended with the most excruciating pain, seeing that every one is of opinion that the malady with which for the moment he himself is afflicted, is the most excruciating and insupportable. The general experience, however, of the present age has come to the conclusion, that the most agonizing torments are those attendant upon strangury, resulting from calculi in the bladder; next to them, those arising from maladies of the stomach; and in the third place, those caused by pains and affections of the head; for it is more generally in these cases, we find, and not in others, that patients are tempted to commit suicide.