petrated. The importance of preventing even attempts to commit a crime sufficiently authorises a punishment; but as there may be an interval of time between the attempt and the execution, it is proper to reserve the greater punishment for the actual commission, that even after the attempt there may be a motive for desisting.
In like manner, with regard to the accomplices, they ought not to suffer so severe a punishment as the immediate perpetrator of the crime. But this for a different reason. When a number of men unite, and run a common risk, the greater the danger, the more they endeavour to distribute it equally. Now, if the principals be punished more severely than the accessaries, it will prevent the danger from being equally divided, and will increase the difficulty of finding a person to execute the crime, as his danger is greater by the difference of the punishment. There can be but one exception to this rule; and that is, when the principal receives
