When he made himself emperor, Napoleon clearly rejected the republican form of government. Here he tries to claim that hereditary government is necessary in a large state. The presence of the pope at his coronation seemed to confer legitimacy on the act.
The internal situation of France is today as calm as it has ever been in the most peaceful periods. There is no agitation to disturb the public tranquility, no suggestion of those crimes which recall the Revolution. Everywhere useful enterprises are in progress, and the general improvements, both public and private, attest the universal confidence and sense of security. . .
A plot conceived by an implacable government was about to replunge France into the abyss of civil war and anarchy. The discovery of this horrible crime stirred all France profoundly, and anxieties that had scarcely been calmed again awoke. Experience has taught that a divided power in the state is impotent and at odds with itself. It was generally felt that if power was delegated for short periods only, it was so uncertain as to discourage any prolonged undertakings or wide-reaching plans. If vested in an individual for life, it would lapse with him, and after him would prove a source of anarchy and discord. It was clearly seen that for a great nation the only salvation lies in hereditary power, which can alone assure a continuous political life which may endure for generations, even for centuries.
The Senate, as was proper, served as the organ through which this general apprehension found expression. The necessity of hereditary power in a state as vast as France had long been perceived by the First Consul. He had endeavored in vain to avoid this conclusion; but the public solicitude and the hopes of our enemies emphasized the importance of his task, and he realized that his death might ruin his whole work. Under such circumstances, and with such a pressure of public opinion, there was no alternative left to the First Consul. He resolved, therefore, to accept for himself, and two of his brothers after him, the burden imposed by the exigencies of the situation.
After prolonged consideration, repeated conferences with the members of the Senate, discussion in the councils, and the suggestions of the most prudent advisers, a series of provisions was drawn up which regulate the succession to the imperial throne. These provisions were decreed by a senatus-consultus of the 28 Floréal last. The French people, by a free and independent expression, then manifested its desire that the imperial dignity should pass down in a direct line through the legitimate or adopted descendants of Napoleon Bonaparte, or through the legitimate descendants of Joseph Bonaparte, or of Louis Bonaparte.
From this moment Napoleon was, by the most unquestioned of titles, Emperor of the French. No other act was necessary to sanction his right and consecrate his authority. But he wished to restore in France the ancient forms and recall those institutions which divinity itself seems to have inspired. He wished to impress the seal of religion itself upon the opening of his reign. The head of the Church, in order to give the French a striking proof of his paternal affection, consented to officiate at this august ceremony. What deep and enduring impressions did this leave on the mind of Napoleon and in the memory of the nation! What thoughts for future races! What a subject of wonder for all Europe!
In the midst of this pomp, and under the eye of the Eternal, Napoleon pronounced the inviolable oath which assures the integrity of the empire, the security of property, the perpetuity of institutions, the respect for law, and the happiness of the nation. The oath of Napoleon shall be forever the terror [of] the enemies of France. If our borders are attacked, it will be repeated at the head of our armies, and our frontiers shall never more fear foreign invasion.
Source: James H. Robinson and Charles A. Beard, eds., Readings in Modern European History, vol. 1 (Boston: Ginn and Company, 1908), pp. 334-336.