We do not seek the unanimity that comes to those who water down all issues to the lowest common denominator - or to those who conceal their differences behind fixed smiles - or to those who measure unity by standards of popularity and affection, instead of trust and respect. We are allies. This is a partnership, not an empire. We are bound to have differences and disappointments - and we are equally bound to bring them out into the open, to settle them where they can be settled, and to respect each other's views when they cannot be settled.

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. The relationship between the soundness of the body and the activities of the mind is subtle and complex. Much is not yet understood. But we do know what the Greeks knew: that intelligence and skill can only function at the peak of their capacity when the body is healthy and strong; that hardy spirits and tough minds usually inhabit sound gods.

Perhaps scientists have been the most international of all professions in their outlook... Every time you scientists make a major invention, we politicians have to invent a new institution to cope with it-and almost invariably, these days, it must be an international institution.

The great enemy of the truth is not the lie, deliberate, contrived and dishonest but the myth persistent, persuasive and unrealistic.

Effort and courage are not enough without purpose and direction.

If at times our actions seem to make life difficult for others, it is only because history has made life difficult for us all.

Unconditional war can no longer lead to unconditional victory. It can no longer serve to settle disputes... can no longer be of concern to great powers alone.