The proper function of man is to live, not to exist. I shall not waste my days in trying to prolong them. I shall use my time.

As for the primitive, I hark back to it because we are still very primitive. How many thousands of years of culture, think you, have rubbed and polished at our raw edges? One probably; at the best, no more than two. And that takes us back to screaming savagery, when, gross of body and deed, we drank blood from the skulls of our enemies, and hailed as highest paradise the orgies and carnage of Valhalla.

Thus it was that in obedience to the law laid down by his mother, and in obedience to the law of that unknown and nameless thing, fear, he kept away from the mouth of the cave.

Fear urged him to go back, but growth drove him on.

The effect of civilization is to impose human law upon environment until it becomes machine-like in its regularity. The objectionable is eliminated, the inevitable is foreseen. One is not even made wet by the rain nor cold by the frost; while death, instead of stalking about gruesome and accidental, becomes a prearranged pageant, moving along a well-oiled groove to the family vault, where the hinges are kept from rusting and the dust from the air is swept continually away.

He was not immoral, but merely unmoral.

Kill or be killed, eat or be eaten, was the law; and this mandate, down out of the depths of Time.