Final answer:
The book 'Into The Wild' by Jon Krakauer describes Chris McCandless's philosophy of traveling without restrictions, much in line with the solitary existence and non-conformity seen in Thoreau's 'Walden'. McCandless seeks to live meaningfully away from society and encourages this lifestyle to Ronald Franz, suggesting he sell his possessions to live more freely.
Step-by-step explanation:
In Jon Krakauer's narrative nonfiction book Into The Wild, Chris McCandless establishes several rules for himself as he sets out on his adventure into the American wilderness. One particular rule, which he impresses upon Ronald Franz, is to live life by the moment and travel without restriction. This philosophy can be encapsulated in the idea of living without constraints, which includes avoiding attachments that might hinder the freedom McCandless so adamantly seeks.
Much like Henry David Thoreau in Walden, McCandless's journey into the wild is marked by a desire to find a deeper meaning in life by removing himself from the trappings of society. It's this solitary existence and non-conformity that illustrates Krakauer's portrayal of McCandless, who has often been romanticized for his adventurous spirit and tragic end in the Alaskan wilderness. However, it's worth noting this rule does not directly correspond to the provided options for Franz. McCandless did encourage Franz to embrace a nomadic lifestyle, suggesting he convert his possessions to cash and 'live more freely and independently,' but the specifics of that lifestyle are largely inferential based on Krakauer's narrative.