With the cessation of the motive, the inability to find the mislaid object also came to an end. Ladies and gentlemen, I could increase this collection of examples indefinitely. But I do not wish to do so here. In my _Psychopathology of Everyday Life_ (first published in 1901), you will find only too many instances for the study of errors.[15] All these examples demonstrate the same thing repeatedly: namely, they make it seem probable that errors have a meaning, and show how one may guess or establish that meaning from the attendant circumstances. I limit myself to-day because we have confined ourselves to the purpose of profiting in the preparation for psychoanalysis from the study of these phenomena. I must, however, still go into two additional groups of observations, into the accumulated and combined errors and into the confirmation of our interpretations by means of subsequent developments. The accumulated and combined errors are surely the fine flower of their species. If we were interested only in proving that errors may have a meaning, we would limit ourselves to the accumulated and combined errors in the first place, for here the meaning is unmistakable, even to the dullest intelligence, and can force conviction upon the most critical judgment. The accumulation of manifestations betrays a stubbornness such as could never come about by accident, but which fits closely the idea of design. Finally, the interchange of certain kinds of error with each other shows us what is the important and essential element of the error, not its form or the means of which it avails itself, but the purpose which it serves and which is to be achieved by the most various paths. Thus I will give you a case of repeated forgetting. Jones recounts that he once allowed a letter to lie on his writing desk several days for reasons quite unknown. Finally he made up his mind to mail it; but it was returned from the dead letter office, for he had forgotten to address it. After he had addressed it he took it to the post office, but this time without a stamp. At this point he finally had to admit to himself his aversion against sending the letter at all.