William Shakespeare, Sonnet lxxxviii

When thou shalt be dispos'd to set me light,
And place my merit in the eye of scorn,
Upon thy side against myself I'll fight,
4
And prove thee virtuous, though thou art forsworn:
With mine own weakness being best acquainted,
Upon thy part I can set down a story
Of faults conceal'd, wherein I am attainted;
8
That thou, in losing me, shalt win much glory:
And I by this will be a gainer too;
For bending all my loving thoughts on thee,
The injuries that to myself I do,
12
Doing thee vantage, double-vantage me.
Such is my love, to thee I so belong,
That for thy right myself will bear all wrong.