All this I was entitled to say simply as a professional man, even on the assumption that you had had me taught, and devoted much care and expense to my training, that this particular case had been within my competence, and I had yet declined it. But in fact you have to consider also how utterly unreasonable it is that you should not let me use at my own discretion my own acquisition. It was not as your son nor under your authority that I acquired this art; and yet it was for your advantage that I acquired it—you were the first to profit by it—, though you had contributed nothing to my training. Will you mention the fees you paid? How much did the stock of my surgery cost you? Notone penny. I was a pauper, I knew not where to turn for necessaries, and I owed my instruction to my teachers’ charity. The provision my father made for my education was sorrow, desolation, distress, estrangement from my friends and banishment from my family. And do you then claim to have the use of my skill, the absolute control of what was acquired independently? You should be content with the previous service rendered to yourself, not under obligation, but of free will; for even on that occasion nothing could have been demanded of me on the score of gratitude. My kindness of the past is not to be my duty of the future; a voluntary favour is not to be turned into an obligation to take unwelcome orders; the principle is not to be established that he who once cures a man is bound to cure any number of others at his bidding ever after. That would be to appoint the patients we cure our absolute masters; we should be paying them, and the fee would be slavish submission to their commands. Could anything be more absurd? Because you were ill, and I was at such pains to restore you, does that make you the owner of my art? All this I could have said, if the tasks he imposed upon me had been within my powers, and I had declined to accept all of them, or, on compulsion, any of them. But I now wish you to look further into their nature. ‘You cured me of madness (says he); my wife is now mad and in the condition I was in (that of course is his idea); she has been given up as I was by the other doctors, but you have shown that nothing is too hard for you; very well, then, cure her too, and make an end of her illness.’ Now, put like that, it sounds very reasonable, especially in the ears of a layman innocent of medical knowledge. But if you will listen to what I have to say for my art, you will find that there are things too hard for us, that all ailments are not alike, that the same treatment and the same drugs will not always answer; and then you will understand what a difference there is between refusing and being unable. Pray bear with me while I generalize a little, without condemning my disquisition as pedantic, irrelevant, or ill-timed.