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248 some willingness to be lonely new thought cannot be achieved. And it will not be achieved to any purpose if the loneliness is accompanied by aloofness, so that the wish for union with others dies, or if intellectual detachment leads to contempt. It is because the state of mind required is subtle and difficult, because it is hard to be intellectually detached yet not aloof, that fruitful thought on human affairs is not common, and that most theorists are either conventional or sterile. The right kind of thought is rare and difficult, but it is not impotent. It is not the fear of impotence that need turn us aside from thought if we have the wish to bring new hope into the world.

In seeking a political theory which is to be useful at any given moment, what is wanted is not the invention of a Utopia, but the discovery of the best direction of movement. The direction which is good at one time may be superficially very different from that which is good at another time. Useful thought is that which indicates the right direction for the present time. But in judging what is the right direction there are two general principles which are always applicable.

1. The growth and vitality of individuals and