Taxonomically
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A famous quote of MLK is: "Nonviolence is a powerful and just weapon. which cuts without wounding and ennobles the man who wields it. It is a sword that heals." This is why I believe that is the answer.
Answer:
a group of lines( forming the basic recurring metrical unit in a poem )
The glove represents a part of his former life that is still meaningful to him. He thinks the papers do not.
The answer is D, he connected to both the beat generation rebellion and anti-Vietnam War activities.