The best historians of later times have been seduced from truth, not by their imagination, but by their reason. They far excel their predecessors in the art of deducing general principles from facts. But unhappily they have fallen into the error of distorting facts to suit general principles. They arrive at a theory from looking at some of the phenomena; and the remaining phenomena they strain or curtail to suit the theory. For this purpose it is not necessary that they should assert what is absolutely false; for all questions in morals and politics are questions of comparison and degree. Any proposition which does not involve a contradiction in terms may by possibility be true; and, if all the circumstances which raise a probability in its favour, be stated and enforced, and those which lead to an opposite conclusion be omitted or lightly passed over, it may appear to be demonstrated. In every human character and transaction there is a mixture of good and evil: a little exaggeration, a little suppression, a judicious use of epithets, a watchful and searching scepticism with respect to the evidence on one side, a convenient credulity with respect to every report or tradition on the other, may easily make a saint of Laud, or a tyrant of Henry the Fourth. This species of misrepresentation abounds in the most valuable works of modern historians. Herodotus tells his story like a slovenly witness, who, heated by partialities and prejudices, unacquainted with the established rules of evidence, and uninstructed as to the obligations of his oath, confounds what he imagines with what he has seen and heard, and brings out facts, reports, conjectures, and fancies, in one mass. Hume is an accomplished advocate. Without positively asserting much more than he can prove, he gives prominence to all the circumstances which support his case; he glides lightly over those which are unfavourable to it; his own witnesses are applauded and encouraged; the statements which seem to throw discredit on them are controverted; the contradictions into which they fall are explained away; a clear and connected abstract of their evidence is given. Everything that is offered on the other side is scrutinised with the utmost severity; every suspicious circumstance is a ground for comment and invective; what cannot be denied is extenuated, or passed by without notice; concessions even are sometimes made: but this insidious candour only increases the effect of the vast mass of sophistry.