To solve a problem or to reach a goal, you don't need to know all the answers in advance. But you must have a clear idea of the problem or the goal you want to reach.
Bio: Melissa Anelli is an American author and webmistress. She is the author of the New York Times bestseller Harry, A History, which chronicles the Harry Potter phenomenon with exclusive interview material and a foreword written by Harry Potter creator J.K. Rowling.