REFERENCES AND RESEARCH
The rare people who do become truly exceptional at something do so not because they believe they're exceptional. On the contrary, they become amazing because they are obsessed with improvement. And that obsession stems from an unerring belief that they are in fact, not great at all. It's anti-entitlement. People who become great at something become great because they understand that they're not already great- they are mediocre, they are average- and that they could be so much better."