I recieved questions that say in chapter 1 and 2 there are epigraphs from a friend and the other is by the McCandless, but I don't know where it is?

An epigraph is a quotation used at the opening of a text
or, in this case, a chapter. Chapter 1 opens with McCandless’ own writing on a postcard
he sent in April 1992. It is a very fatalistic piece of writing, and McCandless seems
almost assured that he will not survive the experience. It also contains the words which
became the inspiration for the title of the text-

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 I now walk into the
wild.

 Chapter 2 begins with
another epigraph from McCandless: an observation on the writer Jack London. Krakauer
indicates that the words were found carved on a piece of wood at the site of McCandless’
death. We realise as a reader that he did not survive the experience. Krakauer then
includes a quotation from “White Fang” by Jack London, which illustrates the majestic
yet fearful environment which captivated McCandless so
completely-

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 It was the Wild, the savage, frozen-hearted
Northern wild.