Willpower, when mixed with free will. When those two are combined with the decision, to not give up, even through the most dire of situations, those are what we call heroes. As commonly used, all heroes don't weAr capes. Hard times create the strong, the strong create good times, good times create weak people, weak people create hard times, so it continues, indefinitely. True "heroes" are not made through good times. It's the average individual, that have been or will be faced with the decision of letting go of fear, reaching for the courage to forego extreme failure. Reaches for that dig-deep