Effort and courage are not enough without purpose and direction.

Democracy is the superior form of government, because it is based on a respect for man as a reasonable being.

We must face the fact that the United States is neither omnipotent nor omniscient, that we cannot impose our will upon the other 94 percent of mankind, that we cannot right every wrong or reverse every adversity, and that therefore there cannot be an American solution to every world problem.

The courage of life is often a less dramatic spectacle than the courage of a final moment; but it is no less a magnificent mixture of triumph and tragedy.

There is, of course, a legitimate argument for some limitation upon immigration. We no longer need settlers for virgin lands, and our economy is expanding more slowly than in the nineteenth and early twentieth centuries.

Events of October 1962 indicated, as they had all through history, that control of the sea means security. Control of the seas can mean peace. Control of the seas can mean victory. The United States must control the seas if it is to protect your security.

Science contributes to our culture in many ways, as a creative intellectual activity in its own right, as the light which has served to illuminate man's place in the universe, and as the source of understanding of man's own nature.