History is a relentless master. It has no present, only the past rushing into the future. To try to hold fast is to be swept aside.

Suspicion on one side breeds suspicion on the other, and new weapons beget counter-weapons.

No country can possibly move ahead, no free society can possibly be sustained, unless it has an educated citizenry whose qualities of mind and heart permit it to take part in the complicated and increasingly sophisticated decisions that pour not only upon the President and upon the Congress, but upon all the citizens who exercise the ultimate power.

Life in freedom is not easy, and democracy is not perfect.

We should not let our fears hold us back from pursuing our hopes.

Khrushchev reminds me of the tiger hunter who has picked a place on the wall to hang the tiger's skin long before he has caught the tiger. This tiger has other ideas.

Physical fitness is not only one of the most important keys to a healthy body, it is the basis of dynamic and creative intellectual activity.