The failure in public and in private life thus to treat each man on his own merits, the recognition of this government as being either for the poor as such or for the rich as such, would prove fatal to our Republic, as such failure and such recognition have always proved fatal in the past to other republics. A healthy republican government must rest upon individuals, not upon classes or sections. As soon as it becomes government by a class or by a section, it departs from the old American ideal.
Many qualities are needed by a people which would preserve the power of self- government in fact as well as in name. Among these qualities are forethought, shrewdness, self-restraint, the courage which refuses to abandon one's own rights, and the disinterested and kindly good sense which enables one to do justice to the rights of others. Lack of strength and lack of courage and unfit men for self-government on the one hand; and on the other, brutal arrogance, envy- in short, any manifestation of the spirit of selfish disregard, whether of one's own duties or of the rights of others, are equally fatal.
In the history of mankind many republics have risen, have flourished for a less or greater time, and then have fallen because their citizens lost the power of governing themselves and thereby of governing their state; and in no way has this loss of power been so often and so clearly shown as in the tendency to turn the government into a government primarily for the benefit of one class instead of a government for the benefit of the people as a whole. Again and again in the republics of ancient Greece, in those of medieval Italy and medieval Flanders, this tendency was shown, and wherever the tendency became a habit it invariably and inevitably proved fatal to the state. In the final result, it mattered not one whit whether the movement was in favor of one class or of another.
The outcome was equally fatal, whether the country fell into the hands of a wealthy oligarchy which exploited the poor or whether it fell under the domination of a turbulent mob which plundered the rich. In both cases there resulted violent alternations between tyranny and disorder, and a final complete loss of liberty to all citizens--destruction in the end overtaking the class which had for the moment been victorious as well as that which had momentarily been defeated. The death-knell of the Republic had rung as soon as the active power became lodged in the hands of those who sought, not to do justice to all citizens, rich and poor alike, but to stand for one special class and for its interests as opposed to the interests of others.
The reason why our future is assured lies in the fact that our people are genuinely skilled in and fitted for self-government and therefore will spurn the leadership of those who seek to excite this ferocious and foolish class antagonism. The average American knows not only that he himself intends to do what is right, but that his average fellow countryman has the same intention and the same power to make his intention effective. He knows, whether he be business man, professional man, farmer, mechanic, employer, or wage-worker, that the welfare of each of these men is bound up with the welfare of all the others; that each is neighbor to the other, is actuated by the same hopes and fears, has fundamentally the same ideals, and that all alike have much the same virtues and the same faults. Our average fellow citizen is a sane and healthy man who believes in decency and has a wholesome mind. He therefore feels an equal scorn alike for the man of wealth guilty of the mean and base spirit of arrogance toward those who are less well off, and for the man of small means who in his turn either feels, or seeks to excite in others the feeling of mean and base envy for those who are better off. The two feelings, envy and arrogance, are but opposite sides of the same shield, but different developments of the same spirit....
The line of cleavage between good citizenship and bad citizenship separates the rich man who does well from the rich man who does ill, the poor man of good conduct from the poor man of bad conduct. This line of cleavage lies at right angles to any such arbitrary line of division as that separating one class from another, one locality from another, or men with a certain degree of property from those of a less degree of property.
http://www.theodore-roosevelt.com/images/research/speeches/trsquaredealspeech.pdf