These quotations are from the U.S. Conference of Catholic Bishops’ statement Sharing Catholic Social Teaching: Challenges and Directions (Washington D.C.: United States Catholic Conference, 1998), pp. 4-6. The summary of these themes also draws from statements of the U.S. Catholic Bishops on A Century of Social Teaching (1991) and Political Responsibility: Proclaiming the Gospel of Life, Protecting the Least Among Us, and Pursuing the Common Good (1995), as well as from other church documents.
Find a more in-depth summary of the seven themes of Catholic Social Teaching from USCCB.