Don't fear failure so much that you refuse to try new things. The saddest summary of a life contains three descriptions: could have, might have, and should have. Louis E.Boone
One of the saddest realities is that we never know when our lives are at their peak. Only after it is over and we have some kind of perspective do we realize how good we had it a day, a month, five years ago. Jonathan Carroll
One of the saddest things I've seen in Amazonian cultures is people who were self-sufficient and happy that now think of themselves as poor and become dissatisfied with their lives. What worries me is outsiders trying to impose their values and materialism on the Piraha. Daniel Everett