This is written in the elder days as the Earth rides close to the rim of eternity, edging nearer to the dying Sun, into which her two inner companions of the solar system have already plunged to a fiery death. The Twilight of the Gods is history; and our planet drifts on and on into that oblivion from which nothing escapes, to which time itself may be dedicated in the final cosmic reckoning.
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. SimakIf mankind were to continue in other than the present barbarism, a new path must be found, a new civilization based on some other method than technology
Clifford D. SimakMy reluctance to use alien invasion is due to the feeling that we are not likely to be invaded and taken over. It would seem to me that by the time a race has achieved deep space capability it would have matured to a point where it would have no thought of dominating another intelligent species. Further than this, there should be no economic necessity of its doing so. By the time it was able to go into deep space, it must have arrived at an energy source which would not be based on planetary natural resources.
Clifford D. Simak