But you who seek to give and merit fame,
And justly bear a critic's noble name,
Be sure yourself and your own reach to know
How far your genius taste and learning go.
Launch not beyond your depth, but be discreet
And mark that point where sense and dullness meet.

Nature to all things fixed the limits fit
And wisely curbed proud man's pretending wit.
As on the land while here the ocean gains.
In other parts it leaves wide sandy plains
Thus in the soul while memory prevails,
The solid power of understanding fails
Where beams of warm imagination play,
The memory's soft figures melt away
One science only will one genius fit,
So vast is art, so narrow human wit
Not only bounded to peculiar arts,
But oft in those confined to single parts
Like kings, we lose the conquests gained before,
By vain ambition still to make them more
Each might his several province well command,
Would all but stoop to what they understand.

First follow nature and your judgment frame
By her just standard, which is still the same.
Unerring nature still divinely bright,
One clear, unchanged and universal light,
Life force and beauty, must to all impart,