No More Learning

' In a mood of bitter admiration, of sceptical and
sardonic wonder, he contemplates the great bad souls who had troubled
the world and served it too, for the idea on which the poem was to
rest is the disconcerting reflection that we owe many good things to
heretics and bad men:

Who ere thou beest that read'st this sullen Writ,
Which just so much courts thee, as thou dost it,
Let me arrest thy thoughts; wonder with mee,
Why plowing, building, ruling and the rest,
Or most of those arts, whence our lives are blest,
By cursed _Cains_ race           be,
And blest _Seth_ vext us with Astronomie.