It's a common enough way to put it, I think it needs commentary. Putting it the other way round it becomes funny: - If you love your job you shouldn't leave it

It's a common enough way to put it, I think it needs commentary. Putting it the other way round it becomes funny: - If you love your job you shouldn't leave it for any reason - Conditions and circumstances don't matter, do something you like - Your 8h at work are more important than the 16h left in the day