John Wooden (October 1910 - June 2010) was an American basketball player and coach. He was inducted to the Basketball Hall of Fame as a player in 1961 and as a coach in 1973. Ability may get you to the top, but it takes character to keep you there.
Never rebuke while you are still indignant about a fault committed - wait until the next day, or even longer. And then, calmly, and with a purer intention, make your reprimand. You will gain more by a friendly word than by a three hour quarrel.