The hatched chick cannot go back to the shell, the falcon who has found the sky does not willingly sit the nest.
Mercedes LackeyI think I know why you never married, Sarah." "Well, and I reckoned if I wanted something that'd come and go as he pleased, take me for granted, and ignore me when he chose, I'd get a cat. And if I wanted something I'd always have to be picking up after, getting into trouble, but slavishly devoted, I'd get a dog.
Mercedes LackeyWe're none of us quite so sure of our place in the world that we can't be rocked off our feet by bad times. It's the getting back up again that counts. Not that you fall, but getting back up again counts for more in the long run.
Mercedes Lackey