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.
Champions do not become champions when they win the event, but in the hours, weeks, months and years they spend preparing for it. The victorious performance itself is merely the demonstration of their championship character.
I would like to say boxing cannot compared with war. We have gloves on, we have cushions, we have referees, we have judges, we have ambulances there, the intention not to kill, we don't have steel there, we don't have bullets, we don't kill momma, kill daddy, kill baby, our intention is a sport, and we're not there to kill, so boxing cannot be compared in no way with machineguns and bombs and everything that used.
I always believe in going hard at everything, whether it is Latin or mathematics, boxing or football, but at the same time I want to keep the sense of proportion. It is never worth while to absolutely exhaust one's self or to take big chances unless for an adequate object. I want you to keep in training the faculties which would make you, if the need arose, able to put your last ounce of pluck and strength into a contest. But I do not want you to squander these qualities.