A President is impeachable if he attempts to subvert the Constitution.

The danger of disturbing the public tranquillity by interesting too strongly the public passions, is a still more serious objection against a frequent reference of constitutional questions to the decision of the whole society.

Popular liberty might then have escaped the indelible reproach of decreeing to the same citizens, the hemlock on one day, and statues on the next.

How could a readiness for war in time of peace be safely prohibited, unless we could prohibit, in like manner, the preparations and establishments of every hostile nation?

It is a universal truth that the loss of liberty at home is to be charged to the provisions against danger, real or pretended, from abroad.

[Religious liberty was] in its nature an inalienable right ... because the opinions of men, depending only upon the evidence contemplated by their minds, cannot follow the dictates of other men.

The ultimate authority resides in the people, and that if the federal government got too powerful and overstepped its authority, then the people would develop plans of resistance and resort to arms.