Where did that absurd notion come from?
What one is capable of doing with their life is entirely dependent on the circumstances of their birth.
Your genes determine your predisposition and potential. They're outside of your control.
Some will stutter out "n-nurture!", but that is also entirely up to fate. Infants don't choose their diets, their caretakers, or their culture. What they grow up to be is outside of their control.
But sure. Go tell the gutter trash with a genetic disorder and stunted growth due to malnutrition and childhood trauma that quote.
Or in Pokemon terms, try to use a Sunflora as an ace and see how that goes.
