And, _first_, it is the duty of the Doctor to _cure_ you,--if he can. That is what we call him in for; and a doctor, be he never so clever and delightful, who doesn't cure, is like a mole-catcher who can't catch moles, or a watchmaker who can do everything but make your watch go. Old Dr. Pringle of Perth, when preaching in the country, found his shoes needed mending, and he asked the brother whom he was assisting to tell him of good cobbler, or as he called him, a _snab_. His friend mentioned a "Tammas Rattray, a godly man, and an elder." "But," said Dr. Pringle, in his snell way, "can he mend my shoon? that's what I want; I want a shoemaker; I'm not wanting an elder." It turned out that Tammas was a better elder than a shoemaker. A doctor was once attending a poor woman in labor; it was a desperate case, requiring a cool head and a firm will; the good man--for he _was_ good--had neither of these, and, losing his presence of mind, gave up the poor woman as lost, and retired into the next room to pray for her. Another doctor, who, perhaps, wanted what the first one had, and certainly had what he wanted, brains and courage, meanwhile arrived, and called out, "Where is Doctor ----?" "O, he has gone into the next room to pray!" "Pray! tell him to come here this moment, and help me; he can work and pray too"; and with his assistance the snell doctor saved that woman's life. This, then, is the Doctor's first duty to you,--to cure you,--and for this he must, in the first place, be up to his business; he must know what to do, and, secondly, he must be able to do it; he must not merely do as a pointer dog does, stand and say, "There it is," and no more, he must point and shoot too. And let me tell you, moreover, that unless a man likes what he is at, and is in earnest, and sticks to it, he will no more make a good doctor than a good anything else. Doctoring is not only a way for a man to do good by curing disease, and to get money to himself for doing this, but it is also a study which interests for itself alone, like geology, or any other science; and moreover it is a way to fame and the glory of the world; all these four things act upon the mind of the Doctor, but unless the first one is uppermost, his patient will come off second-best with him; he is not the man for your lives or for your money.