Address during his Pastoral Visit to Pomezia, Italy
Catechism of the Catholic Church
"For more than a decade bishops, theologians, and other experts worked on a 'compendium of all Catholic doctrine regarding both faith and morals.' The fruit of their work was the catechism, an organized presentation of the essential teachings of the Catholic Church in regards to both faith and morals, 'in the light of the Second Vatican Council and the whole of the church’s tradition.'” - USCatholic.org
"Exhorting Christians everywhere to be involved in the transformation of existing socio-economic systems, John Paul II presents work as a fundamental dimension of human existence through which the "social question" must be viewed. The meaning of work can only be properly understood when the dignity of labor is taken as an underlying premise." - http://www.cctwincities.org/CatholicSocialTeachingMajorDocuments
"Above all, I implore Mary, the heavenly Mother of the Church, to be so good as to devote herself to this prayer of humanity's new Advent, together with us who make up the Church, that is to say the Mystical Body of her Only Son. I hope that through this prayer we shall be able to receive the Holy Spirit coming upon us and thus become Christ's witnesses 'to the end of the earth,' like those who went forth from the Upper Room in Jerusalem on the day of Pentecost."
Saint Ambrose, De Obitu Valentiniani Consolatio
Saint Athanasius, Life of Saint Antony
Saint Basil, Regulae Fusius Tractatae
Saint Irenaeus, Adversus Haereses