It doesn’t roll uphill by itself, the heavy rock, I can tell you from personal experience.   Instead of working to move the boulder up that slippery slope at the moment, I find myself reading a book about the biological imperative that makes us hesitate when the going gets hard, apparently a fear center deep in the brain called the amygdala.  This primitive reptile structure enabled our survival by letting fight or flight overrule all other processes in a nano-second.  

I imagine that if you walk a familiar path straight to work every day, and get paid, and go home to leisure, you might have an easier time moving yourself forward than if you’re trying to invent a situation where you can be most productive and help the most people.  

But I’m only imagining that, so many people drag themselves to work, full of dread and loathing, no matter how much they get paid.