“Everybody has a perspective. Everybody in your scene has a reason. They have their own voice, their own identity, their own history… But if you don’t know who everybody is and why they’re there, why they’re feeling what they’re feeling and why they’re doing what they’re doing, then you’re in trouble.”
Combining all of the above studies, characteristics such as grit, perseverance and self-control can be identified as the keys to success. Broadly speaking, we could categorise this simply as mental toughness.