Sonnet 152: In Loving Thee Thou Knowst I Am Forsworn

The last poem in the collection to address William Shakespeare's mistress directly, Sonnet 152 conclusively answers some questions, while leaving many old and several new ones open for us to ponder into posterity.

It asserts again that his Dark Lady is indeed 'dark', both in appearance and in character, and here makes a stronger than ever point of how he as the poet is perjuring himself by repeatedly, even continuously, saying things about her that are simply untrue; these things, notably, not being slanderous lies but favourable compliments.

The sonnet thus epitomises the form that Shakespeare with his highly unusual series either deliberately or accidentally creates: that of the anti-love poem to someone he just can't resist, even though he knows that in this he presents as deep a character flaw in himself as the ones he perceives in the person or people he professes to love or desire.