"If you got amnesia, I and the rest of the human race would disappear."

Secundus looked worried, "That is also correct, and if that should happen, you will readily understand that we would be in difficulty. The situation is extremely—But pardon me. I had promised to be silent except when answering questions."

"This is the part I fail to understand, Mr. Secundus. I gather that you brought me here to treat Mr. Primus. Now, if I exist as a thought in your mind, you necessarily know everything I know. Why don't you treat him yourself?"

Secundus shook his head disapprovingly. "Oh, no, Dr. Raye, that is not the case at all. It cannot be said that I know everything that you know; rather we should say that I remember you. In other words, that I maintain your existence by an act of memory. The two functions, knowledge and memory, are not identical, although, of course, the second cannot be considered to exist without the first. But before we become entangled in our own terms, I should perhaps remind you that when I employ the word 'memory' I am only making use of a convenient approximation. Perhaps it would be helpful to say that my memory is comparable to the structure-memory of a living organism, although that, too, has certain semantic disadvantages. Were you about to make a remark, Doctor?"

"It still seems to me," Herman said stubbornly, "that if you remember me, structurally or otherwise, that includes everything I remember. If you're going to tell me that you remember human knowledge, including Freudian theory and practice, but are unable to manipulate it, that seems to me to be contradicted by internal evidence in what you've already said. For example, it's clear that in the field of epistemology—the knowledge of knowledge, you might say—you have the knowledge and manipulate it."

"Ah," said Secundus, smiling shyly, "but, you see, that happens to be my line. Psychoanalysis and psychotherapy, being specializations, are not. As I mentioned previously, persons of our order are theoretically not capable of psychic deterioration. That is why we come to you, Dr. Raye. We are unable to help ourselves; we ask your help. We place ourselves unreservedly in your hands."

The question, "How was I chosen?" occurred to Herman, but he left it unasked. He knew that the answer was much likelier to be, "At random," than, "Because we wanted the most brilliant and talented psychoanalyst on the planet."

"I gather that I'm not the first person you've tried," he said.

"Oh, you saw Dr. Buddolphson departing? Yes, it is true that in our ignorance of the subject we did not immediately turn to practitioners of your psychological orientation. In fact, if you will not be offended, I may say that you are practically our last hope. We have already had one eminent gentleman whose method was simply to talk over Mr. Primus's problems with him and endeavor to help him reach an adjustment; he failed because Mr. Primus, so far as he is aware, has no problems except that he has lost his memory. Then we had another whose system, as he explained it to me, was simply to repeat, in a sympathetic manner, everything that the patient said to him; Mr. Primus was not sufficiently prolix for this method to be of avail.

"Then there was another who wished to treat Mr. Primus by encouraging him to relive his past experiences: 'taking him back along the time-track,' as he called it; but—" Secundus looked mournful—"Mr. Primus has actually had no experiences in the usual sense of the term, though he very obligingly made up a number of them. Our ontogeny, Dr. Raye, is so simple that it can scarcely be said to exist at all. Each of us normally has only one function, the one I have already mentioned, and, until this occurrence, it has always been fulfilled successfully.