" Can you explain away love too?' I asked.
'Oh yes,' he said. 'The desire to possess in some, like avarice: in others the desire to surrender, to lose the sense of responsibility, the wish to be admired. Sometimes just the wish to be able to talk, to unburden yourself to someone who won't be bored. The desire to find again a father or a mother. And of course under it all the biological motive. "

― Graham Greene , The End of the Affair