Which is an example of a couplet from Shakespeare's "Sonnet 18"? O Shall I compare thee to a summer's day?
Thou art more lovely and more temperate:
O Sometime too hot the eye of heaven shines,
And often is his gold complexion dimm'd,
O But thy eternal summer shall not fade,
Nor lose possession of that fair thou ow'st,
O So long as men can breathe or eyes can see,
So long lives this, and this gives life to thee.