Nationalism
Whereas nationalism still seeks power, honour, and glory through means that endanger other countries, patriotism knows that a country's strength and honour can only be permanently safeguarded through concourse with other countries. And whereas nationalism scoffs at the idea of international laws and regulations, patriotism seeks to create such.
It is not easy to see how the more extreme forms of nationalism can long survive when men have seen the Earth in its true perspective as a single small globe against the stars.
Nationalism is power hunger tempered by self-deception.
Patriotism is when love of your own people comes first; nationalism, when hate for people other than your own comes first.
Nationalism is an infantile disease. It is the measles of mankind.