“You have not lived today until you have done something for someone who can never repay you.”

“You can’t live a perfect day without doing something for someone who will never be able to repay you.”

“If you want something you have never had, you must be willing to do something you have never done.”

“You can only be jealous of someone who has something you think you ought to have yourself.”

“If you want something you've never had you have to be willing to do something you've never done.”

“Never interrupt someone doing something you said couldn't be done.”

“You never know what life is like, until you have lived it.”

“Until you have done something for humanity,” wrote the great American educator Horace Mann, “you should be ashamed to die.”

“If you take a shot at someone, you keep firing until they can no longer return fire. Wound them, and you have an angry enemy who knows your position.”

“So you never know who you touch. You never know how or when you'll have an impact, or how important your example can be to someone else" (20).”