but Commonplace. It was the acceptance of traditional opinions and current sentiments as an ultimate fact; and bandying of the abstract terms which express approbation and disapprobation, desire and aversion, admiration and disgust, as if they had a meaning thoroughly understood and universally assented to. The men of his day (like those of ours) thought that they knew what Good and Evil, Just and Unjust, Honorable and Shameful, were, because they could use the words glibly, and affirm them of this and of that, in agreement with existing custom. But what the property was, which these several instances possessed in common, justifying the application of the term, nobody had considered; neither the Sophists, nor the rhetoricians, nor the statesmen, nor any of those who set themselves up or were set up by others as wise. Yet whoever could not answer this question was wandering in darkness; had no standard by which his judgments were regulated, and which kept them consistent with one another; no rule which he knew, and could stand by, for the guidance of his life. Not knowing what Justice and Virtue are, it was impossible to be just and virtuous; not knowing what Good is, we not only fail to reach it, but are certain to embrace Evil instead. Such a condition, to any one capable of thought, made life not worth having. The grand business of human intellect ought to consist in subjecting these general terms to the most rigorous scrutiny, and bringing to light the ideas that lie at the bottom of them. Even if this cannot be done, and real knowledge be attained, it is already no small benefit to expel the false opinion of knowledge; to make men conscious of their ignorance of the things most needful
