If we misprepresent reality as we apprehend it as no more than a picture, then the reality as it is in intself of which we take ourselves to have a picture is a conception projected solely by analogy: it must be to reality as we apprehend it as a painting is to a painted landscape. We know what it is to view a real landscape; but a reality that we can never apprehend, because any apprehension of it will neccessarily be no more than a picture, is a phantasm produced by pushing analogy beyond its legitimate limits.
Michael Dummet, Thought and Reality