John F. Kennedy’s Inaugural Address contains many rhetorical features. Parallel structure is a technique which entail a repetition of some words or pattern of words. This stylistic device not only offers a more pleasant speech but also makes the speech easy to understand and get the main idea.
Example:” "Let every nation know, whether it wishes us well or ill, that we shall pay any price, bear any burden, meet any hardship, support any friend, oppose any foe to assure the survival and the success of liberty.” In this particular excerpt, there is the repetition of grammatical structure: Verb + any+ object.
In his speech, there are other rhetorical devices. In the following example it is possible to recognize the use of Metaphor and Alliteration. Metaphor is a figure of speech that is used to describe someone, something or an idea using certain words whose meaning must not be taken literally. It helps to deliver a message in a clear and convincing manner. Alliteration enhances greatly the amusement of the speech as it consists of a lively repetition of the initial sound of words in a passage and It helps to convey meaning in a creative, effective and appealing manner. Besides, it provides rhythm to the text .
Example: “Let the word go forth from this time and place, to friend and foe alike, that the torch has been passed to a new generation of Americans, born in this century,”
This sentence gives the idea that a new era and a new movement towards a better future in America (metaphor) and there is the repetition of the "f" sound (alliteration)