"But, whatever be the constitution, great care must be taken to provide a mode of amendment, when experience or change of circumstances shall have manifested that any part of it is unadapted to the good of the nation. In some of our States it requires a new authority from the whole people, acting by their representatives, chosen for this express purpose, and assembled in convention. This is found ' too difficult for remedying the imperfections which experience develops from time to time in an organization of the first impression. A greater facility of amendment is certainly requisite to maintain it in a course of action accommodated to the times and changes through which we are ever passing. In England the constitution may be altered by a single act of the legislature, which amounts to the having no constitution at all. In some of our States, an act passed by two different legislatures, chosen by the people, at different and successive elections, is sufficient to make a change in the constitution. As this mode may be rendered more or less easy, by requiring the approbation of fewer or more successive legislatures, according to the degree of difficulty thought sufficient, and yet safe, it is evidently the best principle which can be adopted for constitutional amendments."