Based on technological research and the transformation of nature, industrialization constantly goes forward, giving proof of incessant creativity. While certain enterprises develop and are concentrated, others die or change their location. Thus new social problems are created: professional or regional unemployment, redeployment and mobility of persons, permanent adaptation of workers and disparity of conditions in the different branches of industry.

Modern man listens more willingly to witnesses than to teachers, and if he does listen to teachers, it is because they are witnesses.

Based on technological research and the transformation of nature, industrialization constantly goes forward, giving proof of incessant creativity. While certain enterprises develop and are concentrated, others die or change their location. Thus new social problems are created: professional or regional unemployment, redeployment and mobility of persons, permanent adaptation of workers and disparity of conditions in the different branches of industry.

The hungry nations of the world cry out to the peoples blessed with abundance. And the Church, cut to the quick by this cry, asks each and every man to hear his brother's plea and answer it lovingly.

The freedom or immunity from coercion in matters religious, which is the endowment of persons as individuals, is also to be recognized as their right when they act in community. Religious communities are a requirement of the social nature both of man and of religion itself.

Never give advice in a crowd.

I met a hundred men going to Delhi and everyone is my brother.