At once the source, and end, and test of art.
Art from that fund each just supply provides,
Works without show, and without pomp presides:
In some fair body thus th' informing soul
With spirit feeds, with vigour fills the whole.
Each motion guides, and every nerve sustains;
Itself unseen, but in th' effects, remains.
Some, to whom Heaven in wit has been profuse,
Want as much more, to turn it to its use;
For wit and judgment often are at strife,
Though meant each other's aid, like man and wife.
'Tis more to guide than spur the Muse's steed;
Restrain his fury, than provoke his speed;
The wingèd courser, like a generous horse,
Shows most true mettle when you check his course.

Those rules of old discovered, not devised,
Are Nature still, but Nature methodized;
Nature, like liberty, is but restrained
By the same laws which first herself ordained.

You, then, whose judgment the right course would steer,
Know well each ancient's proper character;
His fable, subject, scope in every page;
Religion, country, genius of his age:
Without all these at once before your eyes,
Cavil you may, but never criticise,
Be Homer's works your study and delight,
Read them by day, and meditate by night;
Thence form your judgment, thence your maxims bring,