Which sentences in this excerpt from john f. kennedy's inaugural address demonstrate the use of atihesis as a rhetorical device.
a. a victory of a party but a celebration of freedom--symbolizing an end as well as a beginning-signifying as well as change.
b. for man holds in his mortal hands the power to abolish all forms of human poverty and all forms of human life.
c. not form the generosity of the state but from the hand of god.
d. we dare not forget today that we are the heirs of that first revolution.
e. born in this century, tempered by war, disciplined by a hard and bitter peace, proud of our ancient heritage-

Antithesis- An opposing or contrary opinion/concept/characteristic; A literary device intended to persuade an audience.

Antithesis rhetorical device- Two opposing ideas placed together in a sentence to achieve a contrasting effect.

A. "a victory of party but a celebration of freedom—symbolizing an end as well as a beginning–signifying renewal as well as change."

E. "–born in this century, tempered by war, disciplined by a hard and bitter peace, proud of our ancient heritage"

A= An end as well as a beginning, two opposites. Renewal as well as change (renewal is still the same thing, just made new again, while change is something entirely different than it started as) are two opposites.

E= Disciplined by a hard and bitter peace, discipline and peace are opposites because discipline tends to be violent or unpleasant.

Sorry this answer is so late, but I'm going to put it here for anyone else still looking.

they fear for their lives

(you didn't attach a copy of the poem, but i'm answering as best as i can)

since a simile compares two unlike things using like or as, it kind of gives an item the ability to do something it can't.

example: "the player was like a tiger on the field"

in this sentence, the simile conveys the idea that the player was fast and strong, like a tiger.