I've dealt with numbers all my life, of course, and after a while you begin to feel that each number has a personality of its own. A twelve is very different from a thirteen, for example. Twelve is upright, conscientious, intelligent, whereas thirteen is a loner, a shady character who won't think twice about breaking the law to get what he wants. Eleven is tough, an outdoorsman who likes tramping through woods and scaling mountains; ten is rather simpleminded, a bland figure who always does what he's told; nine is deep and mystical, a Buddha of contemplation.
Paul AusterWhen I start, I have a feeling for the characters, and maybe the shape of the story. Sometimes I might even have the last sentence in mind. But, no book I've ever written has ever ended the way I thought it would. Characters disappear, others come forward. Once you start writing, everything changes.
Paul Auster