Here's the thing: I love my work. I love work nearly as much as I love my family. But it's work. And it's toxic to think otherwise. Toxic because if you love it, why not do it all the time, to the exclusion of all other things?
But as entrepreneurs, we're building lives, not just careers. (Those of you who work for other people aren't doing yourself any favors by going beyond expectations just because you like what you do, either.)