(5) Though no precise rule can be laid down about the repetition of words, there seems to be a kind of impertinence in presenting to the reader the same thought in the same words, repeated twice over in the same passage without any new aspect or modification of it. And the evasion of tautology--that is, the substitution of one word of precisely the same meaning for another--is resented by us equally with the repetition of words. Yet on the other hand the least difference of meaning or the least change of form from a substantive to an adjective, or from a participle to a verb, will often remedy the unpleasant effect. Rarely and only for the sake of emphasis or clearness can we allow an important word to be used twice over in two successive sentences or even in the same paragraph. The particles and pronouns, as they are of most frequent occurrence, are also the most troublesome. Strictly speaking, except a few of the commonest of them, 'and,' 'the,' etc., they ought not to occur twice in the same sentence. But the Greek has no such precise rules; and hence any literal translation of a Greek author is full of tautology. The tendency of modern languages is to become more correct as well as more perspicuous than ancient. And, therefore, while the English translator is limited in the power of expressing relation or connexion, by the law of his own language increased precision and also increased clearness are required of him. The familiar use of logic, and the progress of science, have in these two respects raised the standard. But modern languages, while they have become more exacting in their demands, are in many ways not so well furnished with powers of expression as the ancient classical ones.