Although this is often attributed to Sigmund Freud, there is no record of him ever having said it or written it.
It appears that the quote may be an adaptation of the phrase “Sometimes a banana is just a banana” used in an early Saturday Night Live sketch, as follows:
Announcer: And now, Great Moments in Herstory, a celebration of women through the ages.
Announcer: And now, Great Moments in Herstory, a celebration of women through the ages.
[Dissolve to a finely appointed sitting room, complete with globe, couch and easy chair. A narrator reads a superimposed text as it scrolls by.]

