This is the best I can come up with:
It's understood that if there's zero (nothing) in someone's head - (i.e. if someone is brainless)
then love for oneself will appear as idiocy to this person, 
but for the sake of it, some do fall in love with such (a type) as well... 
and they can't notice anything, 
though the difference of intellect is obvious.
So where's the truth???