I've been listening to this book on my morning jogs lately, and I've come away with a good recipe for happy living. Mr. Zamperini has a lot of good suggestions, and I encourage you to read the book or watch the movie about him Angelina Jolie directed. (I haven't seen it myself ... yet.) Anyhow, yes, a whole lot of great life lessons in that book, which I'm taking the liberty to boil down to this: Try to give more to the world than you take away from it. You'll be surprised how much you get.

https://www.youtube.com/watch?v=XrjJbl7kRrI