"Night and Day" is a novel writing and published by Virginia Woolf in 1919. It narrates the daily life and the loving interlacements, sentimental of two friends: Katharine Hilbery and Mary Datchet. The protagonist is Katharine. She appears you of it to a privileged family, bourgeois. Katharine is often winning  for her dowries letteraire, but secretly it has a great passion for the mathematics and the sentimental relationships...