“Only when I saw the Earth from space, in all its ineffable beauty and fragility, did I realize that humankind's most urgent task is to cherish and preserve it for future generations.” EarthRealizingSpaceEnvironmentSawsGenerationsTasksGreenClimate ChangePreservesCherishHumankindUrgentFuture GenerationFragilityIneffable Author:Sigmund Jahn
“Mankind is advanced technically. Man can build space stations, can assemble them in space, and ponders about landing on Mars, but the development of mankind itself seems to stagnate on stone age level.” MenSeemsAgeSpaceLevelsMankindDevelopmentStonesStationsMarsPonderingLandingStone Age Author:Sigmund Jahn