The comparisons we make when we are appraising value, where we're trying to estimate how much we'll like things, are not the same comparisons we'll be making when we consume them.
当初为估量价值而做的比较， 即我们试图决定 我们有多喜欢一样东西， 当我们在使用它的时候， 这种比较早已不复存在了。