[W]ar is a question, under our constitution, not of Executive, but of Legislative cognizance. It belongs to Congress to say whether the Nation shall of choice dismiss the olive branch and unfurl the banners of War.

I expect we shall be told, that the Militia of the country is its natural bulwark, and would be at all times equal to the national defence...The facts, which from our own experience forbid a reliance of this kind, are too recent to permit us to be the dupes of such a suggestion.

If we are in earnest about giving the Union energy and duration we must abandon the vain project of legislating upon the States in their collective capacities.

This balance between the National and State governments ought to be dwelt on with peculiar attention, as it is of the utmost importance. It forms a double security to the people. If one encroaches on their rights they will find a powerful protection in the other. Indeed, they will both be prevented from overpassing their constitutional limits by a certain rivalship, which will ever subsist between them.

There is nothing absurd or impracticable in the idea of a league or alliance between independent nations for certain defined purposes precisely stated in a treaty regulating all the details of time, place, circumstance, and quantity; leaving nothing to future discretion; and depending for its execution on the good faith of the parties.

The passions of a revolution are apt to hurry even good men into excesses.

Divide et impera must be the motto of every nation that either hates or fears us.