Can someone help me with the character analysis of the man in the story "To Build a Fire"?

In Jack London's "To Build a Fire," the dog, as part of
nature, is set in contrast to the man.  Still more wild dog than domesticated, the husky
is equipped for bitter cold.  His thick undercoat insulates him while the long oily
overcoat repels both the cold and the snow.  His feet are flatter on the ground than
other dogs--as though he has mini-snowshoes on--and he instinctively knows to bite the
ice from his feet when he steps through the ice.  Having done so, the wetness does not
permeate his fur and he is yet warm.

On the other hand, the
man, having become wet, must try to build a fire in order to dry his feet.  To do this,
he must expose himself, especially his fingers to the cold for a brief, dangerous time. 
As he "threshed with his arms and hands, [the man] felt a great surge of envy as he
regarded the creature that was warm and secure in its natural covering." And, so, "there
was no keen intimacy between the dog and the man."  For, the
dog

was not
concerned in the welfare of the man; it was for its own sake that it yearned back toward
the fire.

while the man, who
"lacks imagination," is not in touch with nature; he is "ignorant of the cold." He
realizes too late that the man from Sulfur Creek has spoken the truth; he realizes too
late that "one must not be too sure of things."  One cannot outwit nature.  This the dog
knows.