http://en.wikipedia.org/wiki/Scarcity_value http://en.wikipedia.org/wiki/Scarcity_value "Tom said to himself that it was not such a hollow world, after all. He

http://en.wikipedia.org/wiki/Scarcity_value http://en.wikipedia.org/wiki/Scarcity_value "Tom said to himself that it was not such a hollow world, after all. He had discovered a great law of human action, without knowing it -- namely, that in order to make a man or a boy covet a thing, it is only necessary to make the thing difficult to attain."