http://www.truveo.com/Sunscreen/id/793177836

How can you know health without knowing sickness? Where you have everything just by wishing for it, there cannot be any joy in having it. The joy of having something comes from the length of time you have been wanting it, expecting it. Happiness really lies in the expectation. So once you achieve it, it loses its charm for you. Every happiness is imaginary: so long as you don't possess it, it seems to be abounding happiness. But as soon as it is actualized, it ceases to be happiness; our hands are as empty as before. And then we seek some other object for our desire, and we begin to expect it again. We feel so unhappy without it and imagine that happiness will come with it. 

http://www.blinkx.com/video/everything-to-me/-e96PoRkQEFDMecepQhkUg