Yet I would not have all [your love] yet,
He that hath all can have no more;
And since my love doth every day admit
New growth, thou shouldst have new rewards in store;
Thou canst not every day give me thy heart,
If thou canst give it, then thou never gavest it;
Love's riddles are, that though thy heart depart,
It stays at home, and thou with losing savest it;
But we will have a way more liberal,
Than changing hearts, to join them; so we shall
Be one, and one another's all.
-- John Donne, Lovers' Infiniteness more...