The principle of separation of powers ordains that each of the three great branches of the government has exclusive cognizance of and is supreme in matters falling within its own constitutionally allocated sphere. Necessarily imbedded in this doctrine is the principle of non-delegation of powers, as expressed in the Latin maxim potestas delegate non delegari potest, which means what has been delegated cannot be delegated. This doctrine is based on the ethical principle that such delegated power constitutes not only a right but a duty to be performed by the delegate through the instrumentality of his own judgment and not through the intervening mind of another. However, this principle of non-delegation of powers admits of numerous exceptions,