The two leading qualities in the mind of Mr. Greville were the love of truth and the love of justice. His natural curiosity, which led him to track out and analyse the causes of events with great eagerness, was stimulated by the desire to arrive at their real origin, and to award to everyone, with judicial impartiality, what appeared to him to be a just share of responsibility. Without the passions or the motives of a party politician, he ardently sympathised with the cause of Liberal progress and Conservative improvement, or, as he himself expresses it, with Conservative principles on a Liberal basis. He was equally opposed to the prejudices of the old Tory aristocracy, amongst whom he had been brought up, and to the impetuous desire of change which achieved in his time so many vast and various triumphs. His own position, partly from the nature of the permanent office he held in the Privy Council, and partly from his personal intimacies with men of very opposite opinions, was a neutral one; but he used that neutral position with consummate judgment and address to remove obstacles, to allay irritations, to compose differences, and to promote, as far as lay in his power, the public welfare. Contented with his own social position, he was alike free from ambition and from vanity. No man was more entirely disinterested in his judgments on public affairs, for he had long made up his mind that he had nothing to gain or to lose by them, and in the opinions he formed, and on occasion energetically maintained, he cared for nothing but their justice and their truth. I trust that I do not deceive myself in the belief that the impressions of such a man, faithfully rendered at the time, on the events happening around him, will be thought to possess a permanent value and interest. But I am aware that opinions governed by no party standard will appear to a certain extent to be fluctuating and even inconsistent. I have not thought it consistent with my duty as the Editor of these papers to suppress or modify any of the statements or opinions of their Author on public men or public events; nor do I hold myself in any way responsible for the tenor of them. Some of these judgments of the writer may be thought harsh and severe, and some of them were subsequently mitigated by himself. But those who enter public life submit their conduct and their lives to the judgment of their contemporaries and of posterity, and this is especially true of those who fill the most exalted stations in society. Every act, almost every thought, which is brought home to them leaves its mark, and those who come after them cannot complain that this mark is as indelible as their fame. The only omissions I have thought it right to make are a few passages and expressions relating to persons and occurrences in private life, in which I have sought to publish nothing which could give pain or annoyance to persons still alive.