We've been waiting for some more of that Fielding wisdom, delivered at the beginning of each book.
All righty, so Fielding's giving us a distinction between romance writers and biographers. The former give their books hoity-toity titles like "The History of England," while the latter try to find out the truth about great men.
Hold up. Even though it seems like Fielding's saying that biographers are the best, the fact is that all they're doing is copying nature. Nothing original here, folks.
Exhibit A of what Fielding's trying to say: take a look at Don Quixote. No, really. Go ahead. We'll wait.
With Don Quixote, we have a classic that's basically like history.
Hopefully, Joseph Andrews is in a similar vein (says Fielding). After all, we're trying to understand people in general, not one guy in particular (that'd be Joseph Andrews).