"Jealousy: Causes and a Possible Cure" by Emma Goldman
We're all told "jealousy is wrong!" "jealousy is wrong!" and yet we still feel it, so all we can do is suppress the outward manifestations of this mortified rage (which is difficult, to be charitable). Emma Goldman, whom I'm shamed to admit I'm only now discovering, takes the trouble to tell us why jealousy is wrong (in more than just the moral sense - it's completely wrongheaded, too), and gives us a much better explanation than typical societal explanations. ("it just is," "you should trust people," "you're presuming too much," etc..)
Considering I slept on the floor last night, I think I'm learning my share for the day. =) I say this knowing that this kind of knowledge is old hat to most of my friends already!