“So - our readiness to meet and defeat this kind of possible attack is forced upon us, both as a potent preventive of actual war and to insure survival in event of attack. This alertness to danger has to be translated into specific policies and activities in the several parts of the world where our rights - our way of life - can be seriously damaged. Work of this kind occupies my days and nights.” WorldWayKindWarNightPeaceRightsEventsDangerPolicyActivitySurvivalDefeatDay And NightReadinessAlertness Author:Dwight D. Eisenhower
“Space travel leading to skylife is vital to human survival, because the question is not whether we will be hit by an asteroid, but when. A planetary culture that does not develop spacefaring is courting suicide. All our history, all our social progress and growing insight will be for nothing if we perish. No risk of this kind, however small it might be argued to be, is worth taking, and no cost to prevent it is too great. No level of risk is acceptable when it comes to all or nothing survival.” IfsHumansKindDoeMightCultureSocialSpaceLevelsGrowingProgressRiskCostSurvivalSuicideInsightAcceptableSpace TravelSocial ProgressAsteroids Author:Gregory Benford