the unhappiest man

i fell accross this very interesting definition of the unhappiest man, by Soren Kierkegaard, as a reference in a completely irrelevant book - to philosophy, that is. but well, i still found it interesting enough to mention here:

"This is what it amounts to: on the one hand, he constantly hopes for something he should be remembering...On the other hand he constantly remembers something he should be hoping for...Consequently what he hopes for lies behind him and what he remembers lies before him...He is forever quite close to the goal and at the same time at a distance from it; he now discovers that what it is that makes him unhappy, because now he has it, or because he is this way, is precisely what a few years ago would have made him happy if he had it then, whereas then he was unhappy because he didn't have it."

Never read anything of Kierkegaard before but it suddenly sounds a bit interesting...