 Among the many reasons that one might think that nature is valuable include the idea that natural things have a certain kind of history, in particular, a history independent of human intervention (Elliot 1982). This belief leads to the conclusion that, at least with respect to this particular kind of natural value, environmental restoration is impossible: one cannot restore a history free of human intervention through human intervention. Thus, if we want to retain this kind of value, we need to pursue policies of environmental preservation that will protect the natural spaces that bear it (Elliot 1982).