Carl Sagan - 20th September 2019 Every one of us is, in the cosmic perspective, precious. If a human disagrees with you, let him live. In a hundred billion galaxies, you will not find another. - Carl Sagan Carl SaganSarah NorrisSeptember 20, 2019Lando Educationcosmic, precious, galaxies, Carl SaganComment Twitter LinkedIn0 Reddit Tumblr Pinterest0 0 Likes