"If a written constitution is not in close accord with the way the society itself is constituted, it will be irrelevant to the everyday life of the people. A constitution will be a failure if it is no more than a beautiful portrait of an ugly society. But it must be more than an accurate depiction of how the society is constituted. A good constitution provides guidance and structure for the improvement of the society. A good constitution is designed to make the political society better than it is and the citizens better persons. It must be enough like the institutions and the people to be relevant to the working of the society, but it should also have what might be called formative features, a capacity to make us better if we live according to its provisions and adhere to its institutional arrangements."
January 1, 1970
https://en.wikiquote.org/wiki/Constitutions