COMPETITORS

"The best swordsman in the world doesn't need to fear the second best swordsman in the world;

no,

the person for him to be afraid of is some ignorant antagonist who has never had a sword in his hand before;
he doesn't do the thing he ought to do,
and
so the expert isn't prepared for him; he does the thing he ought not to do and often it catches the expert out and ends him on the spot."

—Mark Twain, quoted by Tom Peters