Final answer:
Kennedy uses figurative language, including metaphors and parallelism, in his speeches to convey messages of responsibility and determination.
Step-by-step explanation:
Kennedy uses figurative language in his speeches to engage and captivate his audience. One example is his use of the metaphor of a torch in his inaugural address, where he states, "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." This metaphor symbolizes the responsibility and potential of the younger generation to carry on the ideals of the nation.
Another example is his use of parallelism, such as the repetition of the phrase "not because it is easy, but because it is hard" in his speech at Rice University. This technique emphasizes the challenges and determination required for the United States to explore space.