Authors:

Is there a Legislative power in fact, not expressly prohibited by the Constitution, which might not, according to the doctrine of the Court, be exercised as a means of carrying into effect some specified Power?

James Madison, Ralph Ketcham “Selected Writings of James Madison”, Hackett Publishing
Is there a Legislative power in fact, not expressly prohibited by the Constitution, which might not, according to the doctrine of the Court, be exercised as a means of carrying into effect some specified Power?