A learned historian declared to me of a contemporary, that the latter had appropriated his researches; he might, indeed, and he had a right to refer to the same originals; but if his predecessor had opened the sources for him, gratitude is not a silent virtue.
Isaac D'IsraeliThe ancients, who in these matters were not perhaps such blockheads as some may conceive, considered poetical quotation as one of the requisite ornaments of oratory.
Isaac D'Israeli