William Shakespeare farewells his lover in a Sonnet using many mercantile and legal metaphors (1609)

Farewell! Thou art too deare for my possessing, And like enough thou knowst thy estimate, The charter of thy worth gives thee releasing: My bonds in thee are all determinate. For how do I hold thee but by thy granting? And for that riches where is my deserving? The cause of this fair gift in me is wanting, And so my patent back again is swerving. Thyself thou gav'st, thy own worth then not knowing, Or me to whom thou gav'st it, else mistaking; So thy great gift, upon misprision growing, Comes home again, on better judgement making. Thus have I had thee as a dream doth flatter, In sleep a king, but waking no such matter.