"Those politicians and statesmen who have been the most celebrated for the soundness of their principles and for the justice of their views, have declared in favor of a single Executive and a numerous legislature. They have with great propriety, considered energy as the most necessary qualification of the former, and have regarded this as most applicable to power in a single hand, while they have, with equal propriety, considered the latter as best adapted to deliberation and wisdom, and best calculated to conciliate the confidence of the people and to secure their privileges and interests. That unity is conducive to energy will not be disputed. Decision, activity, secrecy, and despatch will generally characterize the proceedings of one man in a much more eminent degree than the proceedings of any greater number; and in proportion as the number is increased, these qualities will be diminished"(Federalist 70).
From this excerpt, what would you say that the main theme is .