All social cooperation on a larger scale than the most intimate social group requires a measure of coercion. Reinhold Niebuhr Moral Man and Immoral Society (1932)
Cooperation is difficult in the absence of communication. Joseph Nye Understanding International Conflicts: An Introduction to Theory and History (2006)
No nation's security and well-being can be lastingly achieved in isolation but only in effective cooperation with fellow-nations. Dwight D. Eisenhower
We are ready to expand the friendly people-to-people exchanges and enhance exchanges and cooperation in science, technology, culture, education, and other areas. Hu Jintao White House speech (2006)
Competition has been shown to be useful up to a certain point and no further, but cooperation, which is the thing we must strive for today, begins where competition leaves off. Franklin D. Roosevelt
Our species will not survive another 100 years if we don’t move from a competitive to a cooperative mode of existence. “Me first” is an obsolete, unsustainable perspective. Marianne Williamson
Widely dispersed knowledge concerning the important role of basic cooperative processes among living beings may lead to the acceptance of cooperation as a guiding principle both in social theory and as a basis for human behavior. Such a development when it occurs will alter the course of human history. W. C. Allee Cooperation among Animals with Human Implications (1951)
Rule four: greed is not good. Being rapacious doesn't make you a capitalist, it makes you a sociopath. And in an economy as dependent upon cooperation at scale as ours, sociopathy is as bad for business as it is for society. Nick Hanauer
Perfectionism, no less than isolationism or imperialism or power politics, may obstruct the paths to international peace. Let us not forget that the retreat to isolationism a quarter of a century ago was started not by a direct attack against international cooperation but against the alleged imperfections of the peace. Franklin D. Roosevelt
The history of all peoples is full of bloody and revolting pages. So much blood has been spilled for every new construction, every new teaching or religion! That is why humanity urgently must learn the two great concepts — Tolerance and Cooperation. On these two foundations the New Epoch will be built. Helena Roerich
In previous ages a nation's life and culture could be protected to some extent by the growth of armies in national competition. Today we must abandon competition and secure cooperation. This must be the central fact in all our considerations of international affairs; otherwise we face certain disaster. Albert Einstein