The wiser nations are, the more public spirit they possess, the more perfect their political constitution, the fewer constitutional laws they have, for these laws are only props, and a building only needs props when it has become out of plumb or when it has been violently shaken by an external force. The most perfect constitution of antiquity was without contradiction that of Sparta, and Sparta has not left us a single line of its public law. It justly boasted of having written its laws only in the hearts of its children.