The way that the quote is known to have affected Frederick is that the reading the paper inspired Douglass and helped him feel that others understood the problem of slavery.
The central idea that is being passed around is the happiness that Frederick felt due to the fact that he like the contents of the paper.
From what we see here, he is happy about the details hence the use of words in the post.
Read more on Frederick Douglas here:
https://brainly.com/question/13896424
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