In the first French revolution, upon the reign of the Constitutionalists succeeds that of the Girondins; and upon the reign of the Girondins follows that of the Jacobins. Each of these parties in succession rests upon its more advanced element. So soon as it has carried the revolution far enough not to be able to keep pace with, much less march ahead of it, it is shoved aside by its more daring allies, who stand behind it, and it is sent to the guillotine. Thus the revolution moves along an upward line.