Believe in yourself. You are braver than you think, more talented than you know, and capable of more than you imagine.
Nothing in this world can replace steadiness. Ability won’t: nothing is more typical than ineffective men with ability. Virtuoso won’t; unrewarded virtuoso is just about an adage. Training won’t: the world is brimming with instructed cast offs. Ingenuity and assurance alone are supreme.
Source : Collected