“One person can make a difference, and everyone should try.”

“We choose to go to the moon in this decade and do the other things. Not because they are easy, but because they are hard.”

“Do not pray for easy lives. Pray to be stronger men.”

“Change is the law of life. And those who look only to the past or present are certain to miss the future.”

“As we express our gratitude, we must never forget that the highest appreciation is not to utter words, but to live by them.”