[The necessary and proper clause] neither enlarges any power specifically granted; nor is it a grant of any new power to Congress; But it is merely a declaration, for the removal of all uncertainty, that the means of carrying into execution those otherwise granted are included in the grant.

The truth is, that, even with the most secure tenure of office, during good behavior, the danger is not, that the judges will be too firm in resisting public opinion, and in defence of private rights or public liberties; but, that they will be ready to yield themselves to the passions, and politics, and prejudices of the day.

[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.

A new invention to poison people ... is not a patentable invention.

I verily believe Christianity necessary to the support of civil society. One of the beautiful boasts of our municipal jurisprudence is that Christianity is a part of the Common Law... There never has been a period in which the Common Law did not recognize Christianity as lying its foundations.

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.

The constitution of the United States is to receive a reasonable interpretation of its language, and its powers, keeping in view the objects and purposes, for which those powers were conferred. By a reasonable interpretation, we mean, that in case the words are susceptible of two different senses, the one strict, the other more enlarged, that should be adopted, which is most consonant with the apparent objects and intent of the Constitution.