So are you to my thoughts as food to life,
Or as sweet-season'd showers are to the ground;
And for the peace of you I hold such strife
As 'twixt a miser and his wealth is found.
Now proud as an enjoyer, and anon
Doubting the filching age will steal his treasure;
Now counting best to be with you alone,
Then better'd that the world may see my pleasure:
Sometime all full with feasting on your sight,
And by and by clean starved for a look;
Possessing or pursuing no delight
Save what is had, or must from you be took.
Thus do I pine and surfeit day by day,
Or gluttoning on all, or all away.
William Shakespeare
http://www.poemhunter.com/poem/sonnet-75-so-are-you-to-my-thoughts-as-food-to-life/