When you get down to it, though, explaining what you believe isn't all that easy. If you say that you believe something to be true, you might mean one of two things—that you're still weighing the alternatives, or that you accept it as a fact. I don't logically see how one single word can have contradictory definitions, but emotionally, I completely understand. Because there are times I think what I am doing is right, and there are other times I second-guess myself every step of the way.
