16. Towards the preservation of your government, and the permanency of your present happy state, it is requisite not only that you speedily discountenance irregular oppositions to its acknowledged authority, but also that you resist with care the spirit of innovation upon its principles, however specious the pretexts. One method of assault may be to effect in the forms of the Constitution, alterations which impair the energy of the system, and thus to undermine what cannot be directly overthrown. In all the changes to which you may be invited, remember that time and habit are at least as necessary to fix the true character of governments as of other human institutions; that experience is the surest standard by which to test the real tendency of the existing constitution of a country; that facility in changes upon the credit of mere hypothesis and opinion exposes to perpetual change from the endless variety of hypothesis and opinion; and remember, especially, that for the efficient management of your common interests, in a country so extensive as ours, a government of as much vigor as is consistent with the perfect security of liberty is indispensable. Liberty itself will find in such a government, with powers properly distributed and adjusted, its surest guardian. It is, indeed, little else than a name, where the government is too feeble to withstand the enterprises of faction, to confine each member of the society within the limits prescribed by the laws, and to maintain all in the secure and tranquil enjoyment of the rights of person and property.