Long ago, in an interview Don Johnson did, he was asked about his life philosophy. He just said two words: Expect nothing. And that really stuck with me. Sure, be hopeful, be positive, put good thoughts and prayers behind your hopes and dreams, keep reaching for the stars. But then, expect nothing. That way, if your dreams aren't reached, you're less disappointed. And if they are reached, you're wonderfully surprised!
Of course, this philosophy is much easier said than done. Expecting nothing is something that has to be practiced. Daily. When I feel my hopes rising, when I feel that impatient anticipation and want to check my email for news every five seconds, I have to push the impatience down and....wait. Lower my expectations once again. Put my focus elsewhere (on a new project is a good idea--at least I'll be productive!).
So, for those of us waiting on publishers (or queries to agents!), I think "expect nothing" is a good philosophy to adhere to. I only hope I can! ;-)
*checks email one more time before taking my own advice*