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 for the time being represents the neglected interests." He takes the doctrines of Rousseau, which might conceivably have been suppressed as pernicious. To the self-complacent eighteenth century those doctrines came as "a salutary shock, dislocating the compact mass of one-sided opinion." The current opinions were indeed nearer to the truth than Rousseau's, they contained much less of error; "nevertheless there lay in Rousseau's doctrine, and has floated down the stream of opinion along with it, a considerable amount of exactly those truths which the popular opinion wanted; and these are the deposit which we left behind when the flood subsided."

Such is the drift of Mill's main argument. The present writer would prefer to state the justification of freedom of opinion in a somewhat different form, though in accordance with Mill's reasoning. The progress of civilization, if it is partly conditioned by circumstances beyond man's control, depends more, and in an increasing measure, on things which are within his own power. Prominent among these are the advancement of knowledge and the deliberate adaptation of his habits and institutions to new conditions. To advance knowledge and to correct errors, unrestricted freedom of discussion is required.