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. — Sigmund Jahn Copy Share Image
Mankind is advanced technically. Man can build space stations, can assemble them in space, and ponders about landing on Mars, but the development of… — Sigmund Jahn Copy Share Image
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… — Sigmund Jahn Copy Share Image
