Once there had been joy, but now there was only sadness, and it was not, he knew, alone the sadness of an empty house; it was the sadness of all else, the sadness of the Earth, the sadness of the failures and the empty triumphs.
Clifford D. SimakIt is only of life on Earth, however, that one can speak with any certainty. It seems to me that all life on Earth, the sum total of life upon the Earth, has purpose.
Clifford D. SimakWe came into a homeless frontier, a place where we were not welcome, where nothing that lived was welcome, where thought and logic were abhorrent and we were frightened, but we went into this place because the universe lay before us, and if we were to know ourselves, we must know the universe
Clifford D. SimakI'm just a propagandist and a propagandist doesn't have to know what he is talking about, just so he talks about it most convincingly.
Clifford D. Simak