[...] I don’t know if I have messages to send to the world, but there are messages I like to send to myself at all times. One message that really stuck with me when I figured this out is: “Desire is a contract you make with yourself to be unhappy until you get what you want.” I don’t think most of us realize that’s what it is. I think we go about desiring things all day long, and then wondering why we’re unhappy. So, I like to stay aware of that because then I can choose my desires very carefully. I try not to have more than one big desire in my life at any given time, and I also recognize that as the axis of my suffering. I realize that that’s where I’ve chosen to be unhappy. I think that is an important one.
Excerpt from Tools of Titans by Tim Ferris