The legislative department is everywhere extending the sphere of its activity and drawing all power into its impetuous vortex. - James Madison

If men were angels, no government would be necessary. If angels were to govern men, neither external nor internal controls on government would be necessary.

A man has a property in his opinions and the free communication of them.
He has a property of peculiar value in his religious opinions, and in the profession and practice dictated by them.
He has a property very dear to him in the safety and liberty of his person.
He has an equal property in the free use of his faculties and free choice of the objects on which to employ them.
In a word, as a man is said to have a right to his property, he may be equally said to have a property in his rights.

Every new and successful example, therefore, of a perfect separation between the ecclesiastical and civil matters, is of importance; and I have no doubt that every new example will succeed, as every past one has done, in showing that religion and government will both exist in greater purity the less they are mixed together.