Latin

Phrase

pater semper incertus est

1. "The father is always uncertain" (i.e., the identity of a child’s father is always in question)

Freud in Family Romances (1909) states that pater semper incertus est while the mother is certissima –
Note: at the present time Genealogical DNA testing can establish paternity with certainty.

References

• Name of the Father