describing in any unequivocal way the nature of the creature becomes
indefinitely greater.

Is it possible to contemplate man without being struck with the breadth
and depth of the gulf which separates the primitive human being from the
finished product of civilization? What a difference in range of emotion,
in reach of intellect, in stored information, in freedom of action,
between man at his lowest and man at his highest! Can we describe in the
same terms what is natural to man everywhere and always?

For the filthy and ignorant savage, absorbed in satisfying his immediate
bodily needs, standing in the simplest of social relations, taking
literally no thought for the morrow, profoundly ignorant of the world in
which he finds himself, possessing over nature no control worthy of the
name, the sport and slave of his environment, it is natural to act in one
way. For enlightened humanity, acquainted with the past and forecasting
the future, developed in intellect and refined in feeling, rich in the
possession of arts and sciences, intelligently controlling and directing
the forces of nature, socially organized in highly complicated ways, it
is natural to act in another way. And to each of the intermediate stages
in the evolution of civilization some type of conduct appears to be
appropriate and natural.

Whither, then, shall we turn for our conception of man's nature? Shall we
merely draw up a list of the instincts and impulses which may be
observable in all men? Shall we say no more than that man is gifted with
an intelligence superior to that of the brutes? To do this is, to be
sure, to give some vague indication of man's original endowment. But it
can give us little indication of what it is possible for man, with such
an endowment, and in such an environment as makes his setting, to become.