Perseverance vs Stubbornness

Are they two sides of the same coin? Is being stubborn the same characteristic as persevering? If so, why is there a negative connotation associated with the former?

I have been called both, stubborn when scrutinised, perseverant when celebrated. “Why can’t you skip tonight’s training session, stop being so stubborn”, “Just take ones bite of the donut, it won’t kill you, you stubborn b**ch”.
In contrast, I’ve also heard my fair share of “Wow, how do you persevere through the pain, to run 100 km”, “You must be so dedicated to train so much and persevere through the boredom of so many hours of workout” etc.
So which is it, stubbornness or perseverance, a dedicated pursuit towards something grander or a selfish, close minded activity that needs to have more ‘flexibility’ attached to it? read more