Sigmund Freud skriver til sin venn Wilhelm Fliess i Berlin (her gjengitt i engelsk oversettelse -- originalen er på tysk):
I am working on psychology, vigorously and in solitude; I cannot yet send you anything that is halfway finished, no matter how much I reduce my standards concerning what is finished. I believe more and more firmly in the chemical neurone theory; I started with assumptions similar to those you described, but now I am stuck after I ruined my head with it yesterday. I feel more certain about consciousness and must now make an attempt to deal with this most difficult of all things in my lectures on hysteria.
On Saturday I lectured on dream interpretation to the youths of the Jewish academic reading circle; someday you will hear about what it contained; right now I am in no mood for presentations. I am as isolated as you would wish me to be. Word was given out to abandon me, for a void is forming all around me. So far I bear it with equanimity. I find it more troublesome that this year for the first time my consulting room is empty, that for weeks on end I see no new faces, cannot begin any new treatments, and that none of the old ones are completed. Things are so difficult and trying that it requires, on the whole, a strong constitution to deal with them.
As for Eckstein -- I am taking notes on her history so that I can send it to you -- so far I know only that she bled out of longing. (s. 185-186).
Freud, S., et al. (1985). The complete letters of Sigmund Freud to Wilhelm Fliess : 1887-1904. Cambridge, Mass, Belknap Press of Harvard University Press.
Utdrag gjengitt her: