“To want and not to have, sent all up her body a hardness, a hollowness, a strain. And then to want and not to have- to want and want- how that wrung the heart, and wrung it again and again!”

Source: Night World, No. 1

After changing his famous "piratas" trousers for a more traditional look at the Madrid Masters http://news.bbc.co.uk/sport2/hi/funny_old_game/quotes_of_week/4371108.stm

Title poem, section VIII.
The Venetian Bracelet (1829)

Attributed

Source: The Diviners

Source: The Perks of Being a Wallflower

The Four Loves (1960)
Context: To love at all is to be vulnerable. Love anything, and your heart will certainly be wrung and possibly be broken. If you want to make sure of keeping it intact, you must give your heart to no one, not even to an animal. Wrap it carefully round with hobbies and little luxuries; avoid all entanglements; lock it up safe in the casket or coffin of your selfishness. But in that casket — safe, dark, motionless, airless — it will change. It will not be broken; it will become unbreakable, impenetrable, irredeemable. The alternative to tragedy, or at least to the risk of tragedy, is damnation. The only place outside of Heaven where you can be perfectly safe from all the dangers and perturbations of love is Hell.

The Bicycle Rider In Beverly Hills (1952)

Source: "Unsafe at Any Speed or: Safe, Sane and Consensual, My Fanny", p. 14