It is in the interests of the pursuit of knowledge--and it is in our own national interest--that this revolution of national independence succeed. For the Communists rest everything on the idea of a monolithic world--a world where all knowledge has a single pattern, all societies move toward a single model, and all problems and roads have a single solution and a single destination. The pursuit of knowledge, on the other hand, rests everything on the opposite idea--on the idea of a world based on diversity, self-determination, freedom. And that is the kind of world to which we Americans, as a nation, are committed by the principles upon which the great Republic was founded.

I have read your letter of October 26th with great care and welcomed the statement of your desire to seek a prompt solution to the problem. The first thing that needs to be done, however, is for work to cease on offensive missile bases on Cuba and for all weapons systems in Cuba capable of offensive use to be rendered inoperable, under effective United Nations arrangements.

The essence of Vanderbilt is still learning, the essence of its outlook is still liberty, and liberty and learning will be and must be the touchstones of Vanderbilt University and of any free university in this country or the world. I say two touchstones, yet they are almost inseparable, inseparable if not indistinguishable, for liberty without learning is always in peril, and learning without liberty is always in vain.

This decision demands a major national commitment of scientific and technical manpower, materiel and facilities, and the possibility of their diversion from other important activities where they are already thinly spread. It means a degree of dedication, organization and discipline which have not always characterized our research and development efforts. It means we cannot afford undue work stoppages, inflated costs of material or talent, wasteful interagency rivalries, or a high turnover of key personnel. New objectives and new money cannot solve these problems. They could in fact, aggravate them further — unless every scientist, every engineer, every serviceman, every technician, contractor, and civil servant gives his personal pledge that this nation will move forward, with the full speed of freedom, in the exciting adventure of space.

At our meeting in Vienna and subsequently, I expressed our readiness and desire to find, through peaceful negotiation, a solution to any and all problems that divide us. At the same time. I made clear that in view of the objectives of the ideology to which you adhere, the United States could not tolerate any action on your part which in a major way disturbed the existing over-all balance of power in the world. I stated that an attempt to force abandonment of our responsibilities and commitments in Berlin would constitute such an action and that the United States would resist with all the power at its command.

The world is very different now. For man holds in his mortal hands the power to abolish all forms of human poverty and all forms of human life. And yet the same revolutionary beliefs for which our forebears fought are still at issue around the globe — the belief that the rights of man come not from the generosity of the state, but from the hand of God.

Throughout our history we have been challenged to armed conflict by nations which sought to destroy our independence or threatened our freedom. The young men of America have risen to those occasions, giving themselves freely to the rigors and hardships of warfare. But the stamina and strength which the defense of liberty requires are not the product of a few weeks' basic training or a month's conditioning. These only come from bodies which have been conditioned by a lifetime of participation in sports and interest in physical activity. Our struggles against aggressors throughout our history have been won on the playgrounds and corner lots and fields of America. Thus, in a very real and immediate sense, our growing softness, our increasing lack of physical fitness, is a menace to our security.

Today, every inhabitant of this planet must contemplate the day when this planet may no longer be habitable. Every man, woman and child lives under a nuclear sword of Damocles, hanging by the slenderest of threads, capable of being cut at any moment by accident, or miscalculation, or by madness. The weapons of war must be abolished before they abolish us.

We are a great and strong country — perhaps the greatest and strongest in the history of the world. But greatness and strength are not our natural right. They are not gifts which are automatically ours forever. It took toil and courage and determination to build this country — and it will take those same qualities if we are to maintain it. For, although a country may stand still, history never stands still. Thus, if we do not soon begin to move forward again, we will inevitably be left behind. And I know that Americans today are tired of standing still — and that we do not intend to be left behind. But effort and courage are not enough without purpose and direction. For, as Socrates told us, "If a man does not know to what port he is sailing, no wind is favorable."

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No man can fully grasp how far and how fast we have come, but condense, if you will, the 50 thousand years of man's recorded history in a time span of but a half-century. Stated in these terms, we know very little about the first 40 years, except at the end of them advanced man had learned to use the skins of animals to cover them. Then about 10 years ago, under this standard, man emerged from his caves to construct other kinds of shelter. Only five years ago man learned to write and use a cart with wheels. Christianity began less than two years ago. The printing press came this year, and then less than two months ago, during this whole 50-year span of human history, the steam engine provided a new source of power. Newton explored the meaning of gravity. Last month electric lights and telephones and automobiles and airplanes became available. Only last week did we develop penicillin and television and nuclear power, and now if America's new spacecraft succeeds in reaching Venus, we will have literally reached the stars before midnight tonight. </br> This is a breathtaking pace, and such a pace cannot help but create new ills as it dispels old, new ignorance, new problems, new dangers. Surely the opening vistas of space promise high costs and hardships, as well as high reward. </br> So it is not surprising that some would have us stay where we are a little longer to rest, to wait. But this city of Houston, this state of Texas, this country of the United States was not built by those who waited and rested and wished to look behind them. This country was conquered by those who moved forward — and so will space.