“Today there are millions of residents of that "great country, the whole earth."”

Tablets of Bahá'u'lláh http://reference.bahai.org/en/t/b/TB/index.html <!-- p. 22 -->
Context: It behoveth the sovereigns of the world may God assist them or the ministers of the earth to take counsel together and to adopt one of the existing languages or a new one to be taught to children in schools throughout the world, and likewise one script. Thus the whole earth will come to be regarded as one country.

Source: An Introduction to Cybernetics (1956), Part 3: Regulation and control, p. 196

2009, Speech: The Socio-Economic Peace Program of Senator Francis Escudero

As quoted in The Quotable Will Rogers (2006) by Joseph H. Carter
As quoted in ...

The Complaint of Peace (1521)

Context: For four hundred years the human race has not made a step but what has left its plain vestige behind. We enter now upon great centuries. The sixteenth century will be known as the age of painters, the seventeenth will be termed the age of writers, the eighteenth the age of philosophers, the nineteenth the age of apostles and prophets. To satisfy the nineteenth century, it is necessary to be the painter of the sixteenth, the writer of the seventeenth, the philosopher of the eighteenth; and it is also necessary, like Louis Blane, to have the innate and holy love of humanity which constitutes an apostolate, and opens up a prophetic vista into the future. In the twentieth century war will be dead, the scaffold will be dead, animosity will be dead, royalty will be dead, and dogmas will be dead; but Man will live. For all there will be but one country—that country the whole earth; for all there will be but one hope—that hope the whole heaven.

Address to the Workman's Congress at Marseille http://en.wikisource.org/wiki/Victor_Hugo%27s_Address_to_the_Workman%27s_Congress_at_Marseille (1879)

2010s, 2016 Democratic National Convention (2016)

Source: Gleanings from the Writings of Bahá'u'lláh, p. 250