“This is how to play with personal integrity in a tournament’s early rounds, when there is no umpire. Any ball that lands on your side and is too close to call: call it fair. Here is how to be invulnerable to gamesmanship. To keep your attention’s aperture tight. Here is how to teach yourself, when an opponent maybe cheats on the line-calls, to remind yourself that what goes around comes around. That a poor sport’s punishment is always self-inflicted. Try to learn to let what is unfair teach you.”