Thou’dst have, great Glamis, That which cries “Thus thou must do” if thou have it; And that which rather thou dost fear to do Than wishest should be undone. Hie thee hither, That I may pour my spirits in thine ear And chastise with the valor of my tongue 27 All that impedes thee from the golden round 28 Which fate and metaphysical aid doth seem 29 To have thee crowned withal.