John Henry Newman,
An Essay on the Development of Christian Doctrine
“ I saw that the principle of development not only accounted for certain facts, but was in itself a remarkable philosophical phenomenon, giving a character to the whole course of Christian thought. It was discernible from the first years of Catholic teaching up to the present day, and gave to that teaching a unity and individuality. It served as a sort of test, which the Anglican could not stand, that modern Rome was in truth ancient Antioch, Alexandria, and Constantinople, just as a mathematical curve has its own law and expression. ”
