Even Nietzsche, of all people, is in agreement.
And most of “success” is just grit.
The passage by Shauna Niequist on “the myth of prodigy” always comes to mind when I think of this.
Reminds me of the story of Mozart.
After 10 years of diligent practice, he became an “overnight success.”
“Do not talk about giftedness, inborn talents! One can name great men of all kinds who were very little gifted. They acquired greatness, became “geniuses” (as we put it), through qualities the lack of which no one who knew what they were would boast of: they all possessed that seriousness of the efficient workman which first learns to construct the parts properly before it ventures to fashion a great whole; they allowed themselves time for it, because they took more pleasure in making the little, secondary things well than in the effect of a dazzling whole.” —FRIEDRICH NIETZSCHE