There are three things that must be achieved before stability can be recovered: the first of these is a world government with a monopoly of armed force; the second is an approximate quality as regards standards of life in different parts of the world; the third is a population either stationary or very slowly increasing. I do not say that these three things will be achieved. What I do say is that unless they are, the present intolerable insecurity will continue.
Source: New York Times Magazine, Aug.3,1952. Repr. in :Fact and Fiction, 1961, pt.4,chap.4: Three essentials for a stable world (George Allen and Unwin) p.235.
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