Forget the boring old dictum, 'Write about what you know.' Instead, seek out an unknown yet knowable area of experience that's going to enhance your understanding of the world and write about that.
"Ten rules for writing fiction (part two)" by Hilary Mantel, Michael Moorcock, Michael Morpurgo, Andrew Motion, Joyce Carol Oates, Annie Proulx, Philip Pullman, Ian Rankin, Will Self, Helen Simpson, Zadie Smith, Colm Tóibín, Rose Tremain, Sarah Waters, Jeanette Winterson, www.theguardian.com. February 19, 2010.