His food the one man swells with envy and greed;
By like means another gains virtue indeed.
One soil is productive; one barren and salt;
One angel’s in heaven; the other’s at fault.30
In form, many pairs may appear as though one,
Clear water is sometimes as hard as a stone.
Excepting the taster by practice, who knows
The wholesome from unwholesome water that flows?
Supposing saints’ miracles tricks, magic-wrought,
They fancy them both the result of deep thought.