John Kennedy actually said...

"No man can hope to prophesy with precision the outcome of the great struggle in which our generation is now engaged."

"We greatly applaud the determination of African leaders to come to grips with their own problems."

"That is why in the face of an ominous future we can share that faith which Winston Churchill expressed more than a half-century ago, 'Humanity will not be cast down.'"

"I express in my own name and in the name of the American people our most sincere hope that this Conference will achieve a full measure of practical success."