I DO not know how familiar some of you may be, either from your reading or from hearsay, with psychoanalysis. But, in keeping with the title of these lectures—A General Introduction to Psychoanalysis—I am obliged to proceed as though you knew nothing about this subject, and stood in need of preliminary instruction. To be sure, this much I may presume that you do know, namely, that psychoanalysis is a method of treating nervous patients medically. And just at this point I can give you an example to illustrate how the procedure in this field is precisely the reverse of that which is the rule in medicine. Usually when we introduce a patient to a medical technique which is strange to him we minimize its difficulties and give him confident promises concerning the result of the treatment. When, however, we undertake psychoanalytic treatment with a neurotic patient we proceed differently. We hold before him the difficulties of the method, its length, the exertions and the sacrifices which it will cost him; and, as to the result, we tell him that we make no definite promises, that the result depends on his conduct, on his understanding, on his adaptability, on his perseverance. We have, of course, excellent motives for conduct which seems so perverse, and into which you will perhaps gain insight at a later point in these lectures. Do not be offended, therefore, if, for the present, I treat you as I treat these neurotic patients. Frankly, I shall dissuade you from coming to hear me a second time. With this intention I shall show what imperfections are necessarily involved in the teaching of psychoanalysis and what difficulties stand in the way of gaining a personal judgment. I shall show you how the whole trend of your previous training and all your accustomed mental habits must unavoidably have made you opponents of psychoanalysis, and how much you must overcome in yourselves in order to master this instinctive opposition. Of course I cannot predict how much psychoanalytic understanding you will gain from my lectures, but I can promise this, that by listening to them you will not learn how to undertake a psychoanalytic treatment or how to carry one to completion. Furthermore, should I find anyone among you who does not feel satisfied with a cursory acquaintance with psychoanalysis, but who would like to enter into a more enduring relationship with it, I shall not only dissuade him, but I shall actually warn him against it. As things now stand, a person would, by such a choice of profession, ruin his every chance of success at a university, and if he goes out into the world as a practicing physician, he will find himself in a society which does not understand his aims, which regards him with suspicion and hostility, and which turns loose upon him all the malicious spirits which lurk within it.