If, however, this juridical and political structure is to realize its potential benefits, it is absolutely essential that public officials do their utmost to solve the problems that arise; and they must do so by using policies and techniques which it is within their competence to implement, and which suit the actual condition of the State. It is also essential that, despite constantly changing conditions, legislators never disregard the moral law or constitutional provision, nor act at variance with the exigencies of the common good. And as justice must be the guiding principle in the administration of the State, and executives must thoroughly understand the law and carefully weigh all attendant circumstances, so too in the courts: justice must be administered impartially, and judges must be wholly incorrupt and uninfluenced by the solicitations of interested parties. The good order of society also requires that individuals and subsidiary groups within the State be effectively protected by law in the affirmation of their rights and the performance of their duties, both in their relations with each other and with government officials.49Cf. Pius XII's broadcast message, Christmas 1942, AAS 35 (1943) 21.
There can be no doubt that a State juridical system which conforms to the principles of justice and rightness, and corresponds to the degree of civic maturity evinced by the State in question, is highly conducive to the attainment of the common good.
And yet social life is so complex, varied and active in this modern age, that even a juridical system which has been established with great prudence and foresight often seems inadequate to the need.