- “I am not an Athenian, or a Greek, but a citizen of the world”, Socrates
- “Peace is maintained by Justice, which is a Fruit of Government as Government is from Society, and Society from Consent.”, William Penn
- “In my opinion the only salvation for civilization and the human race lies in the creation of a world government, with security of nations founded upon law. As long as sovereign states continue to have separate armaments and armament secrets, new world wars will be inevitable.”, Albert Einstein
- “The Earth is but one country, and mankind its citizens”, Baha'ullah
