The tariff had once more begun to give trouble, and the South was again complaining of its workings, aware that she was falling always more to the rear in the race for prosperity, and blindly attributing her failure to everything but the true reason,--the existence of slavery. Even Benton himself showed a curiously pathetic eagerness to prove both to others and himself that the cause of the increasing disparity in growth, and incompatibility in interest between the two sections, must be due to some temporary and artificial cause, and endeavored to hide from all eyes, even from his own, the fact that the existence of slavery was working, slowly but surely, and with steadily increasing rapidity, to rend in sunder the Union which he loved and served with such heartfelt devotion. He tried to prove that the main cause of discontent was to be found in the tariff and other laws, which favored the North at the expense of the South. At the same time he entered an eloquent plea for a warmer feeling between the sections, and pointed out the absolute hopelessness of attempting to better the situation in any way by disunion. The great Missourian could look back with fond pride and regret to the condition of the South as it was during and immediately after the colonial days, when it was the seat of wealth, power, high living, and free-handed hospitality, and was filled to overflowing with the abounding life of its eager and turbulent sons. The change for the worse in its relative condition was real and great. He reproved his fellow-Southerners for attributing this change to a single cause, the unequal working of the federal government, "which gave all the benefits of the Union to the South and all its burdens to the North;" he claimed that it was due to many other causes as well. Yet those whom he rebuked were as near right as he was; for the change _was_ due in the main to only one cause--but that cause was slavery. It is almost pitiful to see the strong, stern, self-reliant statesman refusing, with nervous and passionate willfulness, to look the danger in the face, and, instead thereof, trying to persuade himself into the belief that "the remedy lies in the right working of the Constitution; in the cessation of unequal legislation; in the reduction of the inordinate expenses of the government; in its return to the simple, limited, and economical machine it was intended to be; and in the revival of fraternal feelings and respect for each other's rights and just complaints." Like many another man he thought, or tried to think, that by sweeping the dust from the door-sill he could somehow stave off the whirling rush of the sand-storm.