Modern science claims it's come up with a way to analyze a book and predict (with 84 percent accuracy!) whether or not it will be a commercial success. Less successful work tends to include more verbs and adverbs and relies on words that describe actions and emotions such as "want" or "promise", while more successful books use more verbs that describe thought processes: "recognize" or "remember." More on the secret sauce recipe here. Pardon while I hurry back to my novel-in-progress to find and replace all the "wants" and "promises".