Want to Be a Great Writer? J.K. Rowling's Best Advice, Summed Up In Just 1 Sentence

One of the world's most successful authors on why most advice on how to be successful is terrible. Think you know exactly what it takes to be successful? J.K. Rowling isn't buying it. Her tweet in response to 4 a.m. being the most productive hour of the day went viral. (She brilliantly said: "Oh, …