Catherine thought, perhaps if we travel together, I shall get to know 
them at last, for so far I have been all wrong, and they have turned out 
different to what I thought.  How is one to know what people are like? ... 
Perhaps one can never know; perhaps people are uncapturable, and slip away 
like water from one's hand, changing all the time.
--Rose Macaulay, "Staying with Relations"