CATHOLIC CHURCH: No meat on Fridays
PEOPLE: Ok so no eggs for breakfast
CC: No, eggs are ok
P: But eggs are chicken
CC: Not until they hatch
P: So the thing isn't the thing until it's born?
CC: Correct—um, no, wait.
Barnacle goose myth - Wikipedia

@ciara2001 @juglugs also in Catholicism: the criticality and importance of the natural sciences. https://en.m.wikipedia.org/wiki/Science_and_the_Catholic_Church
Science and the Catholic Church - Wikipedia