Hey there!
Many people read to gain knowledge or better understanding of a topic. Some read for entertainment, or as a hobby. I like reading because it helps me better picture something then if someone was just talking to me.
Hope this helped, have a great day!
Kennedy said this in a speech about furthering civil rights goals in the UN, which of course is what Martin Luther King had done. Both were calling for the US to hold true to its promise to form a more perfect union.
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Is there a certain excerpt you're supposed to derive the answer from?