This and many other great essays are included in <i>Thoughts of a Philosophical Fighter Pilot</i> [0] which would probably be my "pick one for a desert island" book.<p>[0]: <a href="http://www.amazon.com/Thoughts-Philosophical-Fighter-Pilot-Reprint/dp/0817993924" rel="nofollow">http://www.amazon.com/Thoughts-Philosophical-Fighter-Pilot-R...</a>
I read this a while ago, and while it's not a great work of literature (it rambles here and there), I still recommend it if you're interested in Stoicism.