“Sig, more and more you talk of this little unconscious homunculus living a separate life from its host. Please, Sig, follow my advice: speak about this theory only to me. No, no, I won’t call it a theory even—there’s no evidence whatsoever for it—let’s call it a fanciful notion. Don’t talk about this fanciful notion to Brücke: it would relieve his guilt for not having the courage to promote a Jew.” Freud responded with unusual resoluteness. “It will remain between us until it is proven by sufficient evidence. Then I shall not refrain from publication.”

