ANTIPHOLUS OF SYRACUSE: It is thyself, mine own self’s better part,
Mine eye’s clear eye, my dear heart’s dearer heart,
My food, my fortune, and my sweet hope’s aim,
My sole Earth’s heaven, and my heaven’s claim.

William Shakespeare (1564-1616) English dramatist and poet

Comedy of Errors, Act 3, sc. 2, l. 66ff (3.2.66-69) (1594)
    (Source)

To Luciana.