It had been in that moment that he had realized the insanity of war, the futile gesture that in time became all but meaningless, the unreasoning rage… - Clifford D. Simak

As he looked, Sutton felt the cold hand of loneliness reach down with icy fingers to take him in its grip. For here was sheer, mad loneliness such as he had never dreamed. Here was the very negation of life and motion, here was the stark, bald beginning when there was no life, nor even thought of life. Here anything that knew or thought or moved was an alien thing, a disease, a cancer on the face of nothingness.

There isn't any room," said Joshua. "You travel back along the line of time and you don't find the past, but another world, another bracket of consciousness. The earth would be the same, you see, or almost the same. Same trees, same rivers, same hills, but it wouldn't be the world we know. Because it has lived a different life, it has developed differently. The second back of us is not the second back of us at all, but another second, a totally separate sector of time. We live in the same second all the time. We move along within the bracket of that second, that tiny bit of time that has been allotted to our particular world.

Bit by bit, as the legend unfolds, the reader gets a more accurate picture of the human race. By degrees, one gains the conviction that here is a race which can be little more than pure fantasy. It is not the kind of race which could rise from humble beginnings to the eminence of culture with which it is gifted in these tales. Its equipment is too poor.
So far it lack of stability has become apparent. Its preoccupation with a mechanical civilization rather than with a culture based on some of the sounder, more worthwhile concepts of life indicates a lack of basic character.
And now, in this tale, we learn of the limited communications which it possessed, a situation which certainly is not conducive to advancement. Man’s inability to understand and appreciate the thought and the viewpoint of another man would be a stumbling block which no amount of mechanical ability could overcome.