How to Be a Citizen of Earth

"One small country, in which 0.0002% of the worlds population lives in one of the planets most biodiverse habitats, has taken it upon itself to model for the rest of humanity an inspired step along the path forward. In 1981, just after a dazzling new species of nautilus was discovered in its turquoise waters, the Republic of Palau -- a tiny, vast-spirited Pacific island nation midway between Australia and Japan, crowned with coral castles and radiant with otherworldly jellyfish -- voted for the world's first constitutional ban on nuclear and biological weapons, overriding political pressure from the titanic United States to continue testing and storing its own nuclear arsenal there." 

More in this inspiring post by Maria Popova.