" A man who swears
before the world to love a woman till death part him and her is sane
neither in the opinion of the philosopher who understands what
mutability is nor in the opinion of the man of the world who
understands that it is safer to be a witness than an actor in such
affairs. A man who swears to do something which it is not in his power
to do is not accounted a sane man. "

― James Joyce , Stephen Hero