From the movie, "Finding Forrester:"
— Paragraph three starts with a conjunction, "and." You should never start a sentence with a conjunction."This reminds us why we loved this movie. Rules can be a wonderful thing for consistency and clarity. But for art's sake, those who know what they're doing must break them!
— Sure you can.
— It's a firm rule.
— It was a firm rule. Sometimes using a conjunction at the start of a sentence ... makes it stand out. And that may be what the writer's trying to do.
— And what is the risk?
— Doing it too much. It's a distraction and could give your piece a run-on feeling.
— But the rule on using "and" or "but" at the start of a sentence is pretty shaky. Even though it's still taught by too many professors. Some of the best writers have ignored that rule for years, including you.