Let me confess that we two must be twain,
Although our undivided loves are one:
So shall those blots that do with me remain,
Without thy help, by me be borne alone.
In our two loves there is but one respect,
Though in our lives a separable spite,
Which though it alter not love's sole effect,
Yet doth it steal sweet hours from love's delight.
I may not evermore acknowledge thee,
Lest my bewailed guilt should do thee shame,
Nor thou with public kindness honour me,
Unless thou take that honour from thy name:
But do not so, I love thee in such sort,
As thou being mine, mine is thy good report.
William Shakespeare
http://www.poemhunter.com/poem/sonnet-36-let-me-confess-that-we-two-must-be-twain/