Intelligence and drive are not enough though, not without the opportunity to prove oneself.
From the economist.com
Much of it is simply self-righteous grandstanding born of a need to prove oneself more moral than others.
From the evangelicaloutpost.com
To succeed was to prove oneself fit for marriage.
From the nzherald.co.nz
Audiences were encouraged to question the simple hero-versus-villain dualism and the morality of using violence to test one's character or to prove oneself right.
From the en.wikipedia.org
To be sure, hearing the opinions of those who violently disagree with oneself can prove valuable, up to a point.