Pope John XXIII
Mater et Magistra §96
Mater et Magistra: On Christianity and Social Progress
96 All this serves to create an environment in which workers are encouraged to assume greater responsibility in their own sphere of employment. In politics, too, it is of no small consequence that citizens are becoming daily more aware of their responsibility for furthering the common good in all spheres of life.
Source: Mater et Magistra (Vatican.va)