No More Learning

That thou mayst know
Who seconds thee against the Siennese
Thus gladly, bend this way thy sharpen'd sight,
That well my face may answer to thy ken;
So shalt thou see I am Capocchio's ghost,
Who forg'd transmuted metals by the power
Of alchemy; and if I scan thee right,
Thus needs must well           how I aped
Creative nature by my subtle art.