38 It may be said in all truth that the Church, like Christ, goes through the centuries doing good to all. There would be today neither Socialism nor Communism if the rulers of the nations had not scorned the teachings and maternal warnings of the Church. On the bases of liberalism and laicism they wished to build other social edifices which, powerful and imposing as they seemed at first, all too soon revealed the weakness of their foundations, and today are crumbling one after another before our eyes, as everything must crumble that is not grounded on the one corner stone which is Christ Jesus.
Source: Divini Redemptoris (Vatican.va)