How about not wasting your life? I mean dude,
    you're spending at least 40 hours a week working.
    Why not find something you love doing?

I do. But I enjoy what I do outside of work much, much more than I do offering my employer unpaid overtime. So, I make those 40 hours count. I work extremely hard, and then I'm done.

Sure, there's the occasional night or weekend that I'll work; I'm not going to leave my project in jeopardy, or my coworkers in a lurch...But, I don't owe my employer anything more than they owe me.