1593-1603 by Shakespeare 
Sonnet 48 

1	How careful was I when I took my way
2	Each trifle under truest bars to thrust,
3	That to my use it might unusèd stay
4	From hands of falsehood, in sure wards of trust.
5	But thou, to whom my jewels trifles are,
6	Most worthy comfort, now my greatest grief,
7	Thou best of dearest and mine only care
8	Art left the prey of every vulgar thief.
9	Thee have I not locked up in any chest
10	Save where thou art not, though I feel thou art 
11	Within the gentle closure of my breast,
12	From whence at pleasure thou mayst come and part#
13	And even thence thou wilt be stol’n, I fear,
14	For truth proves thievish for a prize so dear.