The attempt to conceive imaginatively a better ordering of human society than the destructive and cruel chaos in which mankind has hitherto existed is by no means modern: it is at least as old as Plato, whose ̀̀Republic'' set the model for the Utopias of subsequent philosophers. Whoever contemplates the world in the light of an ideal-whether what he seeks be intellect, or art, or love, or simple happiness, or all together-must feel a great sorrow in the evils that men needlessly allow to continue, and-if he be a man of force and vital energy-an urgent desire to lead men to the realization of the good which inspires his creative vision

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