We are born between feces and urine.
Inter faeces et urinas nascimur.
Original text (Latin)
Notes from Wikiquote
Attributed to a church father in Freud's Dora; Freud seems to have found it in an anatomy textbook by Josef Hyrtl (1867), where it was attributed to a church father; it may have been invented by Hyrtl. books.google.com For Hyrtl's quotation see books.google.com. | An early similar phrase appears in a work by the 16th century philosopher Mark Antony Zimara: Quippe si se inter stercus & urinam conceptum fuisse reminisceretur [...] non utique superbiret. ("Since, if [man] remembered that he was conceived between dung and urine, [...] he obviously would not feel pride.") (Source: Problemata Aristotelis ac philosophorum medicorumque complurium, Lyon 1557, p. 154)
Variants
We are born amid feces and urine.