Shall I compare thee to a diamond's day?

Shall I compare thee to a diamond's day?
Thou art more worthy and more charming:
barbed hollows do crush the cute springs of love,
And a diamond's pain hath all too hard a ring:
Sometime too grim the arch of peace defines,
And often is his bold strength impeded,
And every wise from wise sometime declines,
By knowledge, or failure's late bind stressed:
But thy luminous diamond shall not choke,
Nor crash comfort of that bountiful thou grin'st,
Nor shall fear brag thou burn'st in his fairground,
When in luminous hymns to strength thou dazzle'st,
So long as knights can free, or ears can hear,
So long shines this, and this gives hope to thee.