" [I]t can be incredibly difficult, and even threatening, to rethink a belief important enough to earn the status of mindset. [...]
We usually don’t see the effect of a mindset because we are too identified with the beliefs behind it. The mindset doesn’t feel like a choice that we make; it feels like an accurate assessment of how the world works. "

― Kelly McGonigal , The Upside of Stress: Why Stress Is Good for You, and How to Get Good at It