It is not the strongest of the species that survives, nor the most intelligent that survives. It is the one that is the most adaptable to change, that lives within the means available and works cooperatively against common threats.

The world will not be inherited by the strongest, it will be inherited by those most able to change.

It is not the biggest, the brightest or the best that will survive, but those who adapt the quickest.

In the long history of humankind (and animal kind, too) those who learned to collaborate and improvise most effectively have prevailed.

One of the things that can keep you from going away is an openness to change. That's the point.

Our readiness to meet and defeat this kind of possible attack is forced upon us, both as a potent preventive of actual war and to insure survival in event of attack. This alertness to danger has to be translated into specific policies and activities in the several parts of the world where our rights - our way of life - can be seriously damaged. Work of this kind occupies my days and nights.