But at length, in June, 1813, he was persuaded to accept the post of a Senator of the United States, and took his seat that month. He was in Congress during the sessions of 1813 and 1814. Those were very exciting times; party spirit ran very high, and each party put forward its most prominent and gifted men. Both houses were filled by the greatest intellects of the country. Mr. Mason found himself by the side of Rufus King, Giles, Goldsborough, Gore, Barbour, Daggett, Hunter, and other distinguished public men. Among men of whatever party, and however much some of them differed from him in opinion or political principle, there was not one of them all but felt pleasure if he spoke, and respected his uncommon ability and probity, and his fair and upright demeanor in his place and station. He took at once his appropriate position. Of his associates and admirers in the other house, there are some eminent persons now living who were occasional listeners to his speeches and much struck with his ability; together with Pickering, Benson, Pitkin, Stockton, Lowndes, Gaston, and Hopkinson, now all deceased, who used to flock to hear him, and always derived deep gratification and instruction from his talents, character, and power.
He resigned his seat in the Senate in 1817. His published speeches are not numerous. The reports of that day were far less complete than now, and comparatively few debates were preserved and revised. It was a remarkable truth, that he always thought far too lightly of himself and all his productions. I know that he was with difficulty persuaded to prepare his speeches in Congress for publication; and in this memorial of himself which I have before me he says, with every appearance and feeling of sincerity, that he "has never acted any important part in life, but has felt a deep interest in the conduct of others."
His two main speeches were, first, one of great vigor, in the Senate, in February, 1814, on the Embargo, just before that policy was abandoned. The other was later, in December, 1815, shortly before the peace, on Mr. Giles's Conscription Bill, in which he discussed the subject of the enlistment of minors; and the clause authorizing such enlistment was struck out upon his motion.
He was afterwards for several years a member of the New Hampshire Legislature, and assisted in revising the code of that State. He paid much attention to the subject of the judicature, and performed his services fully to the satisfaction of the State; and the result of his labors was warmly commended. In 1824 he was again a candidate for the Senate of the United States. The election was to be made by the concurrent vote of the two branches of the Legislature. In the popular branch he was chosen by a strong vote. The Senate, however, non-concurred; by which means the election was lost,—a loss to the country, not to him,—by force of circumstances and agencies not now or ever fit to be recalled or remembered.
He continued to reside for many years in Portsmouth. His residence in that ancient town was a happy one. He was happy in his family and in the society of the town, surrounded by agreeable neighbors, respected by the bar and the court, and standing at the head of his profession. He had a great love of conversation. He took pleasure in hearing others talk, and gave an additional charm by the freshness, agreeableness, and originality of his own observations. His warm hospitality left him never alone, and his usefulness was felt as much within the walls of the homes, as of the tribunals, of Portsmouth. There are yet many in that town who love him and his; many who witnessed, as children, and recollect, the enthusiasm with which he was greeted by their fathers and mothers; and all in New Hampshire old enough to remember him will feel what we feel here on this occasion.
Led at last partly by the desire of exerting his abilities in a larger sphere of usefulness, and partly by the fact of the residence here of beloved domestic connections, he came to this city, and entered upon the performance of his professional duties in 1832. Of the manner in which he discharged those duties, this court is the most competent judge. You, Mr. Chief Justice, and the venerable associate who usually occupies a place at your right,[2] have been witnesses of the whole. You know the fidelity with which he observed his duty to the court, as well as his duty to his clients. In learning, assiduity, respect for the bench, uprightness, and integrity, he stood as an example to the bar. You know the general probity and talent with which he performed, for so many years, the duty of a counsellor of this court.
I should hardly trust myself to make any analysis of Mr. Mason's mind. I may be a partial judge. But I may speak of what I myself admire and venerate. The characteristics of Mr. Mason's mind, as I think, were real greatness, strength, and sagacity. He was great through strong sense and sound judgment, great by comprehensive views of things, great by high and elevated purposes. Perhaps sometimes he was too cautious and refined, and his distinctions became too minute; but his discrimination arose from a force of intellect, and quick-seeing, far-reaching sagacity, everywhere discerning his object and pursuing it steadily. Whether it was popular or professional, he grasped a point and held it with a strong hand. He was sarcastic sometimes, but not frequently; not frothy or petulant, but cool and vitriolic. Unfortunate for him on whom his sarcasm fell!
His conversation was as remarkable as his efforts at the bar. It was original, fresh, and suggestive; never dull or indifferent. He never talked when he had nothing to say. He was particularly agreeable, edifying, and instructive to all about him; and this was the charm of the social intercourse in which he was connected.
As a professional man, Mr. Mason's great ability lay in the department of the common law. In this part of jurisprudence he was profoundly learned. He had drunk copiously from its deepest springs; and he had studied with diligence and success the departures from the English common law which had taken place in this country, either necessarily, from difference of condition, or positively, by force of our own statutes. In his addresses, both to courts and juries, he affected to despise all eloquence, and certainly disdained all ornament; but his efforts, whether addressed to one tribunal or the other, were marked by a degree of clearness, directness, and force not easy to be equalled. There were no courts of equity, as a separate and distinct jurisdiction, in New Hampshire, during his residence in that State. Yet the equity treatises and equity reports were all in his library, not "wisely ranged for show," but for constant and daily consultation; because he saw that the common law itself was growing every day more and more liberal, that equity principles were constantly forcing themselves into its administration and within its rules; that the subjects of litigation in the courts were constantly becoming, more and more, such as escaped from the technicalities and the trammels of the common law, and offered themselves for discussion and decision on the broader principles of general jurisprudence. Mr. Mason, like other accomplished lawyers, and more than most, admired the searching scrutiny and the high morality of a court of equity; and felt the instruction and edification resulting from the perusal of the judgments of Lord Hardwicke, Lord Eldon, and Sir William Grant, as well as of those of great names in our own country, not now among the living.
Among his early associates in New Hampshire, there were many distinguished men. Of those now dead were Mr. West, Mr. Gordon, Edward St. Loe Livermore, Peleg Sprague, William K. Atkinson, George Sullivan, Thomas W. Thompson, and Amos Kent; the last of these having been always a particular personal friend. All of these gentlemen in their day held high and respectable stations, and were eminent as lawyers of probity and character.