Everyone is fighting their own battles. So always remember if you'rehaving a bad day it is never ok to take it out on someone else or put them down for thier mistakes. We as humans should all help build each other up instead of tearing each other down.
In my opinion, Thoreau is trying to say is how well we respond to situations that are out of our nature. When something that has never happened to one eventually does, the reaction of the individual is determined by their character and personality.
The desire and craving for adventure grabbed hold of me at an early age and never let go. In my childhood, it manifested in the form of ninjas in my backyard, sandwiches transformed into exotic cuisine, and explorations of Neverland with my cousins.