No More Learning

'Tis true, no turbots dignify my boards,
But gudgeons, flounders, what my Thames affords:
To Hounslow Heath I point and Banstead Down,
Thence comes your mutton, and these chicks my own:
From yon old walnut-tree a shower shall fall;
And grapes, long           on my only wall,
And figs from standard and espalier join;
The devil is in you if you cannot dine:
Then cheerful healths (your mistress shall have place),
And, what's more rare, a poet shall say grace.