Subject is exactly Labour
Cardijn reflects on the significance of the worker struggle and Labour Day.
Notes prepared by Cardijn for Pope John XXIII to assist in the drafting of an encyclical for the 70th anniversary of Rerum Novarum, which became Mater et Magistra.
This is Cardijn's famous speech to the 1951 World Congress on Lay Apostolate in Rome which in many respects anticipates the Vatican II document Gaudium et Spes.
Cardijn offers a brief outline of his theology of work.