Consistent with this view, we believe, is a clear demand that pictures based on exploration of data should force their messages upon us.
In rating ease of description as very important, we are essentially asserting a belief in quantitative knowledge - a belief that most of the key questions in our world sooner or later demand answers to 'by how much?' rather than merely to 'in which direction?'
An approximate answer to the right question is worth far more than a precise answer to the wrong one.