We never lose our demons

"We never lose our demons, we only learn to live above them." - The Ancient One from Doctor Strange

It's a pretty solid quote. If you don't know, our "demons" are the thoughts that torment us, our fears, our addictions, our regrets. You would think one should be able to eventually defeat their own demons, but you can't, that's why they're "demons". They don't die, they can't be defeated, but you can become stronger than them, "live above them".