I think both of these passages are very strong and meaningful. The first passage by Leo Tolstoy talks about how routine life is considered the "quiet life". In life people are stuck doing the same old obligations every day. People get up go to work, manage money, take care of the house, and see the same people every day. This at times can get very tiring every day. The passage says that some people need more than just the quiet and routine life. Some people have to go on new adventures and explore.
The second passage talks about how people have this feeling inside that makes them want to go out into the world or try new activities. People want to escape the normal life with rules, laws, and judgements. People need an outlet to let their stress out. The passage talks about how that freedom is found to the west. Like in early American history the colonists traveled west to find themselves a new life.
Chris McCandless found both of these passages to be very important and special. He longed to leave his "quiet life" and find himself a new life and new adventure outside with nature. He did not want to follow laws of society and often in his travels he did break the law. He wanted to be like the people in the past who lived and survived outside. I think he traveled west because the American colonists traveled west and found lots of land, riches, beauty, and happiness. He did not want the riches though. He wanted to use nature riches. Chris McCandless had an urge to seek out more in life and that is what he did.