If the test of poetry were the power of expressing a theory more closely and pointedly than prose, such writing would take a very high place. Some popular philosophers would make a sounding chapter out of those sixteen lines. The Essay on Man brought Pope into difficulties. The central thesis, "whatever is is right," might be understood in various senses, and in some sense it would be accepted by every theist. But, in Bolingbroke's teaching, it received a heterodox application, and in Pope's imperfect version of Bolingbroke the taint was not removed. The logical outcome of the rationalistic theory of the time was some form of pantheism, and the tendency is still more marked in a poetical statement, where it was difficult to state the refined distinctions by which the conclusion is averted. When theology is regarded as demonstrable by reason, the need of a revelation ceases to be obvious. The optimistic view which sees the proof of divine order in the vast harmony of the whole visible world, throws into the background the darker side of the universe reflected in the theological doctrines of human corruption, and the consequent need of a future judgment in separation of good from evil. I need not inquire whether any optimistic theory is really tenable; but the popular version of the creed involved the attempt to ignore the evils under which all creation groans, and produced in different minds the powerful retort of Butler's Analogy, and the biting sarcasm of Voltaire's Candide. Pope, accepting the doctrine without any perception of these difficulties, unintentionally fell into sheer pantheism. He was not yielding to the logical instinct which carries out a theory to its legitimate development; but obeying the imaginative impulse which cannot stop to listen to the usual qualifications and safe-
