…the besetting danger is not so much of embracing falsehood for truth, as of mistaking part of the truth for the whole. It might be plausibly maintained that in almost every one of the leading controversies… both sides were in the right in what they affirmed, though in the wrong in what they denied; and that if either could have been made to take the other’s views in addition to its own, little more would have been needed to make its doctrine correct.  ”