Quote by Arthur C. Clarke
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.
Summary
This quote suggests that the existence of extreme forms of nationalism can be challenged when people gain a broader understanding of the world. Once individuals perceive the Earth as a tiny planet in the vastness of the universe, it becomes difficult for them to hold onto narrow-minded nationalist beliefs that prioritize only their own country. The quote implies that a global perspective shifts people's focus towards unity and cooperation, making extreme nationalism less tenable in the face of an interconnected and interdependent world.