James McCosh on "Oblique Expression"
The Laws of Discursive Thought (R. Carter & Brothers: 1881), p. 180.
It is used by the courtier and the flatterer, who keep within the limits of truth in their statement, but intend that their words should suggest much more to those whom they address. It is employed by the calumniator when he does not bring a direct accusation — which might be met; but he hints and insinuates certain dark charges fitted to raise our worst suspicions. We see it exhibited by the guilty man when he puts on a look of injured innocence; or affects a virtuous indignation because such an offence could be charged against him. There are certain speakers guilty of it in every sentence, and certain writers exhibit it in every page, for they can say nothing clearly and plainly. It has been said of Hume, as a historian, that, "without asserting much more than can be proven, he gives prominence to all the circumstances which support his case, or glides lightly over those which are unfavorable to it."