Answer:
Americans have civil responsibility.
Step-by-step explanation:
John F. Kennedy was reminding the citizens that they had a civil responsibility and that means that they had to - actively participate in and contribute to the advancement of their country. The above excerpt from John F. Kennedy's inaugural address was an exhortation by the then President to all Americans whom he urged to serve their country instead of always being on the receiving end of benefits from their nation. When all citizens contribute their quota to the betterment of their country then there would be progress as they all work for the common good.