Horace still charms with graceful Negligence,
And without Method talks us into Sense,
Will like a Friend familiarly convey
The truest Notions in the easiest way.
He, who Supream in Judgment, as in Wit,
Might boldly censure, as he boldly writ,
Yet judg'd with Coolness tho' he sung with Fire;
His Precepts teach but what his Works inspire.
Our Criticks take a contrary Extream,
They judge with Fury, but they write with Fle'me:
Nor suffers Horace more in wrong Translations
By Wits, than Criticks in as wrong Quotations. (An Essay on Criticism, ll. 653-664)

Basic set up:

In this section of Pope's poem (yeah, it's a poem, but it's also an essay), he praises the ancient Roman poet Horace.

The Augustans' love for the classics is reflected in these lines. Here, Pope is waxing lyrical about what a wonderful writer the ancient poet Horace was.

According to Pope, Horace is great at talking us "into Sense." He conveys to us "the truest Notions in the easiest way." Basically, if you ask Pope, Horace is so much better than all those hacks writing during Pope's own time, who "judge with Fury, but… write with Fle'me."

That's phlegm, folks. Tasty image.

Pope doesn't just praise Horace in this excerpt; he also tries to emulate Horace's wit and style. Look at how neat and graceful those heroic couplets are: "Horace still charms with graceful Negligence,/ And without Method talks us into Sense, / Will like a Friend familiarly convey/ The truest Notions in the easiest way."

Like Horace, Pope is also trying to talk us into sense here. He's trying to convey "Notions" to us in the "easiest way," that is, by employing a style and language that's graceful, convincing, and witty all at once.