"Alex admitted that the only food in his pack was a ten-pound bag of rice". The quote shows us that Chis/Alex is poorly prepared for the adventure ahead of him and he is like this throughout the book.
"He was the hardest worker I've ever seen. Didn't matter what it was, he'd do it"(18). Chris was determined to do whatever was asked of him when he was working for Wayne.
Changed as a person
"...McCandless would wander the seedier quarters of Washington, chatting with prostitutes and homeless people, buying them meals, earnestly suggesting ways they might improve their lives"(113). Chris has a helping and giving nature about him so that's why he would walk around helping the homeless and those in need of help
Ronald Franz is leaving Chris behind to find out where he goes next
"Gallien offered to drive Alex all the way to Anchorage, buy him some decent gear; and then drive him back to wherever he wanted to go. 'No, thanks anyway'(6). Chris was very set in his ways when it came to people buying stuff for him, even though he was poorly prepared.
"No longer would he answer to Chris McCandless; he was now Alexander Supertramp, master of his own destiny"(23). This quote showed the lengths Chris was willing to take, to fulfill his destiny.
"Relieved that he had again evaded the impending threat of human intimacy, of friendship, and all the messy emotional baggage that comes with it." (55) Chris doesn't like having a relation with others. He has weird social problems.