" There is no bleaker moment in life of the city than that one which crosses the boundary lines between those who have not slept all night and those who are going to work. It was for Sabina as if two races of men and women lived on earth, the night people and the day people, never meeting face to face except at this moment. "

― Anaïs Nin , A Spy in the House of Love (Cities of the Interior, #4)