The Interpretation of Dreams by Sigmund Freud Chapter 2 Page 36

The doctors considered that the exclamation arose from a study of Goethe's beautiful essay, and indicated that the patient had been overworking. I expressed the opinion that it seemed more plausible to me that the exclamation “Nature!” was to be taken in that sexual meaning known also to the less educated in our country. It seemed to me that this view had something in it, because the unfortunate youth afterwards mutilated his genital organs. The patient was eighteen years old when the attack occurred.

The first person in the dream-thoughts behind the ego was my friend who had been so scandalously treated. “I now attempted to clear up the chronological relation.” My friend's book deals with the chronological relations of life, and, amongst other things, correlates Goethe's duration of life with a