A perfect historian must possess an imagination sufficiently powerful to make his narrative affecting and picturesque; yet he must control it so absolutely as to content himself with the materials which he finds, and to refrain from supplying deficiencies by additions of his own. He must be a profound and ingenious reasoner; yet he must possess sufficient self-command to abstain from casting his facts in the mould of his hypothesis.
Thomas B. MacaulayPropriety of thought and propriety of diction are commonly found together. Obscurity and affectation are the two greatest faults of style. Obscurity of expression generally springs from confusion of ideas; and the same wish to dazzle, at any cost, which produces affectation in the manner of a writer, is likely to produce sophistry in his reasonings.
Thomas B. Macaulay