He wanted neither arguments nor eloquence to exhibit what was commonly regarded as his wavering policy in the fairest light. He trimmed, he said, as the temperate zone trims between intolerable heat and intolerable cold, as a good government trims between despotism and anarchy, as a pure church trims between the errors of the Papist and those of the Anabaptist. Nor was this defence by any means without weight; for though there is abundant proof that his integrity was not of strength to withstand the temptations by which his cupidity and vanity were sometimes assailed, yet his dislike of extremes, and a forgiving and compassionate temper which seems to have been natural to him, preserved him from all participation in the worst crimes of his time. If both parties accused him of deserting them, both were compelled to admit that they had great obligations to his humanity, and that, though an uncertain friend, he was a placable enemy. He voted in favour of Lord Stafford, the victim of the Whigs; he did his utmost to save Lord Russell, the victim of the Tories; and, on the whole, we are inclined to think that his public life, though far indeed from faultless, has as few great stains as that of any politician who took an active part in affairs during the troubled and disastrous period of ten years which elapsed between the fall of Lord Danby and the Revolution.
His mind was much less turned to particular observations, and much more to general speculations, than that of Shaftesbury.
Shaftesbury knew the King, the Council, the Parliament, the City, better than Halifax; but Halifax would have written a far better treatise on political science than Shaftesbury. Shaftesbury shone more in consultation, and Halifax in controversy: Shaftesbury was more fertile in expedients, and Halifax in arguments. Nothing that remains from the pen of Shaftesbury will bear a comparison with the political tracts of Halifax. Indeed, very little of the prose of that age is so well worth reading as the Character of a Trimmer and the Anatomy of an Equvivalent. What particularly strikes us in those works is the writer's passion for generalisation. He was treating of the most exciting subjects in the most agitated times he was himself placed in the very thick of the civil conflict; yet there is no acrimony, nothing inflammatory, nothing personal. He preserves an air of cold superiority, a certain philosophical serenity, which is perfectly marvellous. He treats every question as an abstract question, begins with the widest propositions, argues those propositions on general grounds, and often, when he has brought out his theorem, leaves the reader to make the application, without adding an allusion to particular men, or to passing events. This speculative turn of mind rendered him a bad adviser in cases which required celerity. He brought forward, with wonderful readiness and copiousness, arguments, replies to those arguments, rejoinders to those replies, general maxims of policy, and analogous cases from history. But Shaftesbury was the man for a prompt decision. Of the parliamentary eloquence of these celebrated rivals, we can judge only by report; and, so judging, we should be inclined to think that, though Shaftesbury was a distinguished speaker, the superiority belonged to Halifax.
Indeed the readiness of Halifax in debate, the extent of his knowledge, the ingenuity of his reasoning, the liveliness of his expression, and the silver clearness and sweetness of his voice, seems to have made the strongest impression on his contemporaries. By Dryden he is described as "of piercing wit and pregnant thought, Endued by nature and by learning taught To move assemblies."
His oratory is utterly and irretrievably lost to us, like that of Somers, of Bolingbroke, of Charles Townshend, of many others who were accustomed to rise amid the breathless expectation of senates, and to sit down amidst reiterated bursts of applause.
But old men who lived to admire the eloquence of Pulteney in its meridian, and that of Pitt in its splendid dawn, still murmured that they had heard nothing like the great speeches of Lord Halifax on the Exclusion Bill. The power of Shaftesbury over large masses was unrivalled. Halifax was disqualified by his whole character, moral and intellectual, for the part of a demagogue. It was in small circles, and, above all, in the House of Lords, that his ascendency was felt.
Shaftesbury seems to have troubled himself very little about theories of government. Halifax was, in speculation, a strong republican, and did not conceal it. He often made hereditary monarchy and aristocracy the subjects of his keen pleasantry, while he was fighting the battles of the Court, and obtaining for himself step after step in the peerage. In this way, he tried to gratify at once his intellectual vanity and his more vulgar ambition. He shaped his life according to the opinion of the multitude, and indemnified himself by talking according to his own. His colloquial powers were great; his perception of the ridiculous exquisitely fine; and he seems to have had the rare art of preserving the reputation of good breeding and good nature, while habitually indulging a strong propensity to mockery.