In the year 1709 was written the Essay on Criticism, a work which displays such extent of comprehension, such nicety of distinction, such acquaintance with mankind, and such knowledge both of ancient and modern learning, as are not often attained by the maturest age and longest experience. It was published about two years afterwards, and being praised by Addison in the Spectator, with sufficient liberality, met with so much favour as enraged Dennis, "who," he says, "found himself attacked without any manner of provocation on his side, and attacked in his person, instead of his writings, by one who was wholly a stranger to him, at a time when all the world knew he was persecuted by fortune; and not only saw that this was attempted in a clandestine manner, with the utmost falsehood and calumny, but found that all this was done by a little affected hypocrite, who had nothing in his mouth at the same time but truth, candour, friendship, goodnature, humanity, and magnanimity." How the attack was clandestine is not easily perceived, nor how his person is depreciated; but he seems to have known something of Pope's character, in whom may be discovered an appetite to talk too frequently of his own virtues. Thus began the hostility between Pope and Dennis, which, though it was suspended for a short time, never was appeased. Pope seems, at first, to have attacked him wantonly; but though he always professed to despise him, he discovers, by mentioning him very often, that he felt his force or his venom.