Saying that humanism is the “one and only truth” is a vast oversimplification. Simply because there is a shared reality and this shared reality is important, doesn’t mean that everything of human worth is part of this shared reality. Far from it. Cultural difference is real and extremely important. Affirming the work of reality-based communities of inquiry in no way implies that they have the whole truth or even most of the truth. But they can certainly tell us when we are wrong about certain things.