I am currently in the middle of listening to the audiobook of Into the Wild, and this passage from a letter Christopher McCandless wrote to Ron Franz is absolutely stunning.
“I’d like to repeat the advice I gave you before, in that I think you really should make a radical change in your lifestyle and begin to boldly do things which you may previously never have thought of doing or been to hesitant to attempt. So many people live within unhappy circumstances and yet will not take the initiative to change their situation because they are conditioned to a life of security, conformity, and conservatism, all of which may appear to give one piece of mind, but in reality nothing is more damaging to the adventurous spirit within a man than a secure future. The very basic core of a man’s living spirit is his passion for adventure. The joy of life comes from our encounters with new experiences, and hence there is no greater joy than to have an endlessly changing horizon, for each day to have a new and different sun.”