Lust...

Savage, extreme, rude, cruel, not to trust.
Enjoyed no sooner but despised straight,
Past reason hunted, and no sooner had,
Past reason hated as a swallowed bait
On purpose laid to make the taker mad:
Mad in pursuit, and in possession so,
Had, having and in quest to have, extreme,
A bliss in proof and proved, a very woe,
Before, a joy proposed, behind, a dream.

-Shakespeare's Sonnet 129