74 For the rest, this right to take part in government opens out to men a new and extensive field of opportunity for service. A situation is created in which civic authorities can, from the greater frequency of their contacts and discussions with the citizens, gain a clearer idea of what policies are in fact effectual for the common good; and in a system which allows for a regular succession of public officials, the authority of these officials, far from growing old and feeble, takes on a new vitality in keeping with the progressive development of human society. (51)
Source: Pacem in Terris (Vatican.va)