" Audiences often ask if characters are based on real people. Indeed the impulse of the amateur is to write about who one knows. The professional on the other hand understands the impossibility of such a task. The creator of the character must know more about the character than anyone could ever possibly know about a real person. The author must possess the complete knowledge; what the person was wearing on Christmas morning when he or she was five, what presents he or she received, and who gave them and how they were given. A "character" therefore is a real person who exists in another plane, a parallel universe based on the author's perceptions of reality. When it comes to people don't write about who you know but what you know of human nature. "

― Candace Bushnell , The Carrie Diaries (The Carrie Diaries, #1)