There are many thoughts that haunt the average human, and one of the most prevalent goes something like this: What do I have to show for my life? Did I make a difference? What will my life have meant? This mindset is summed up nicely during the concluding minutes of Saving Private Ryan, when the dying Tom Hanks’ character whispers into the ear of the young Ryan, “Earn this.” Translation: “We better not have died in vain. Do something really…