Answer:
First of all, note that ethos is the ethical appeal and pathos attempts to invoke sympathy and make the reader feel what the author wants them to feel.
Explanation:
Antithesis - contrast of ideas or words in parallel structure.
He used this frequently and used the pronouns you, let us, we observe, and also he talked about Not as a call to bear arms, not as a call to battle, but to bear the burden of others...
Metaphor - jungle of suspicion, bonds of mass misery, and the chains of poverty
alliteration: Let us go forth, Pay any price, bear any burden
All of these point to pathos - he wants you to think with your heart
