In what? Belief isn't really required for most things if we are defining it as the absence of evidence. When there is evidence, belief isn't really needed. When we say, "I believe that John Doe is a good person" what we are really saying is all evidence points to John Doe being a good person, I can't know everything about him but I believe him to be a good person. But then again, I'm not 2,000 years old.