John F. Kennedy

"Mankind must put an end to war, or war will put an end to mankind."

"Those who dare to fail miserably can achieve greatly."

"The best time to fix the roof is when the sun is still shining."

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

"Some men see things as they are and ask why. I dream things that never were and ask why not."

"The life of the arts, far from being an interruption, a distraction, in the life of a nation, is very close to the center of a nation's purpose."

"America has tossed its cap over the wall of space, and we have no choice but to follow it."

"We live in a world of danger and of rapid change, and we will have to adjust our policies."

"It is certain that all this destroy itself and the world must adjust itself to reality."

"The family is the basic unit of our society."

"Too often we hold fast to the cliches of our forebears. We subject all facts to a prefabricated set of interpretations."

"Every accomplishment starts with the decision to try."

"Effort and courage are not enough without purpose and direction."

"The time is always right to do what is right."

"My fellow Americans, ask not what your country can do for you."

"We dare not tempt them with weakness."

"The wave of the future is not the conquest of the world by a single dogmatic creed but the liberation of the diverse energies of free nations."

"Liberty without learning is always in peril; learning without liberty is always in vain."

"I believe in an America that respects its past and welcomes the future."

"The ignorance of one voter in a democracy impairs the security of all."

"Our task is not to fix the blame for the past, but to fix the course for the future."

"The rights of every man are diminished when the rights of one man are threatened."

"We are caught in war, wanting peace. We are torn by division, wanting unity."

"When power leads man toward arrogance, poetry reminds him of his limitations."

"Modern cynics and skeptics see no more in the moon than a kindly look and pockmarks."

"A man who won't read has no advantage over a man who can't read."

"Democracy is never a final achievement. It is a continuing journey."

"The supreme reality of our time is our indivisibility as children of God and our common vulnerability on this planet."

"Geography has made us neighbors. History has made us friends. Economics has made us partners. And necessity has made us allies."

"Nothing is easier than self-deception, for what each man wishes to be true he generally believes to be true."