A&D.
The central idea of this JFK's speech is
to cultivate a sense of well-being among the American people and
to foster a feeling of happiness and unity across people and nations.
The tone of his speech emphasises on compassion, strength, belief and hope.
The key focus here is to inculcate the idea of peace and unity in the minds of fellow Americans and all nations around the globe.
This speech is an excerpt from 1961.
Explanation:
He concludes the speech by addressing as follows:
To Americans: ask what you can do for the country rather that questioning what the country is doing for you?
To all citizens: seek what we can all achieve together for the freedom of man than asking what America will do for you?