Posted by Dhm on June 17, 2004
In Reply to: Blood will out posted by issy on June 17, 2004
: does anyone know the origon of the phrase, "Blood will out"?
I believe it's proverbial, that is, it may not have a single point of origin. It is part of a class of related expressions, including, "murder will out", "the truth will out", etc.
It means that personal character, as determined by condition of birth, will eventually, inevitably be revealed.