Sociobiologists talk about human life as if it were no more than an element of Nature, bound by its iron laws. Neil Evernden makes an end run around them by showing that once upon a time 'Nature' did not exist. Rather, he says, it is a human invention and it has a history.
Nature is as much a social entity as a physical one.
In addition to the physical resources to be harnessed and transformed, it consists of a domain of norms that may be called upon in defense of certain social ideals.