A feeble execution is but another phrase for a bad execution; and a government ill executed, whatever may be its theory, must, in practice, be a bad government.

There never has been a period of history, in which the Common Law did not recognize Christianity as lying at its foundation.

The real object of the First Amendment was not to countenance, much less advance Mohammedanism, or Judaism or infidelity, by prostrating Christianity; but ... to prevent any national ecclesiastical establishment which should give to a hierarchy the exclusive patronage of the national government.

There is not a truth to be gathered from history more certain, or more momentous, than this: that civil liberty cannot long be separated from religious liberty without danger, and ultimately without destruction to both. Wherever religious liberty exists, it will, first or last, bring in and establish political liberty.

Temporary delusions, prejudices, excitements, and objects have irresistible influence in mere questions of policy. And the policy of one age may ill suit the wishes or the policy of another. The constitution is not subject to such fluctuations. It is to have a fixed, uniform, permanent construction. It should be, so far at least as human infirmity will allow, not dependent upon the passions or parties of particular times, but the same yesterday, to-day, and for ever.

The powers not delegated to the United States by the Constitution, nor prohibited by it to the States, are reserved to the States respectively, or to the people.

[I]t is impossible for those, who believe in the truth of Christianity, as a divine revelation, to doubt, that it is the especial duty of government to foster, and encourage it among all the citizens and subjects. This is a point wholly distinct from that of the right of private judgment in matters of religion, and of the freedom of public worship according to the dictates of one's conscience.