Every day the word 'gift' is used to define talent, ability, and performance. Being gifted has an even deeper meaning, a meaning that isn't always measured in points per game or win/loss records - it's measured by heart, effort, and desire.
When you know both yourself as well as your competition, you are never in danger. To know yourself and not others, gives you half a chance of winning. Knowing neither yourself or your competition puts you in a position to lose.
It is just like man's vanity and impertinence to call an animal dumb because it is dumb to his dull perceptions. Heaven is by favor; if it were by merit your dog would go in and you would stay out. Of all the creatures ever made he (man) is the most detestable. Of the entire brood, he is the only one...that possesses malice. He is the only creature that inflicts pain for sport, knowing it to be pain. The fact that man knows right from wrong proves his intellectual superiority to the other creatures; but the fact that he can do wrong proves his moral inferiority to any creature that cannot.
Sport is the bloom and glow of a perfect health. The great will not condescend to take anything seriously; all must be as gay as the song of a canary, though it were the building of cities, or the eradication of old and foolish churches and nations, which have cumbered the earth long thousands of years.