From the Catechism of the Catholic Church
II. THE VISIBLE WORLD
337 God himself created the visible world in all its richness, diversity and order. Scripture presents the work of the Creator symbolically as a succession of six days of divine “work”, concluded by the “rest” of the seventh day.204 On the subject of creation, the sacred text teaches the truths revealed by God for our salvation,205permitting us to “recognize the inner nature, the value and the ordering of the whole of creation to the praise of God.”206
338 Nothing exists that does not owe its existence to God the Creator. The world began when God’s word drew it out of nothingness; all existent beings, all of nature, and all human history are rooted in this primordial event, the very genesis by which the world was constituted and time begun.207
339 Each creature possesses its own particular goodness and perfection. For each one of the works of the “six days” it is said: “And God saw that it was good.” “By the very nature of creation, material being is endowed with its own stability, truth and excellence, its own order and laws.”208 Each of the various creatures, willed in its own being, reflects in its own way a ray of God’s infinite wisdom and goodness. Man must therefore respect the particular goodness of every creature, to avoid any disordered use of things which would be in contempt of the Creator and would bring disastrous consequences for human beings and their environment.
353 God willed the diversity of his creatures and their own particular goodness, their interdependence and their order. He destined all material creatures for the good of the human race. Man, and through him all creation, is destined for the glory of God.
354 Respect for laws inscribed in creation and the relations which derive from the nature of things is a principle of wisdom and a foundation for morality.
V. THE PROLIFERATION OF SIN
1865 Sin creates a proclivity to sin; it engenders vice by repetition of the same acts. This results in perverse inclinations which cloud conscience and corrupt the concrete judgment of good and evil. Thus sin tends to reproduce itself and reinforce itself, but it cannot destroy the moral sense at its root.
1866 Vices can be classified according to the virtues they oppose, or also be linked to the capital sins which Christian experience has distinguished, following St. John Cassian and St. Gregory the Great. They are called “capital” because they engender other sins, other vices.138 They are pride, avarice, envy, wrath, lust, gluttony, and sloth or acedia.
1867 The catechetical tradition also recalls that there are “sins that cry to heaven”: the blood of Abel,139 the sin of the Sodomites,140 the cry of the people oppressed in Egypt,141 the cry of the foreigner, the widow, and the orphan,142 injustice to the wage earner.143
1868 Sin is a personal act. Moreover, we have a responsibility for the sins committed by others when we cooperate in them:
– by participating directly and voluntarily in them;
– by ordering, advising, praising, or approving them;
– by not disclosing or not hindering them when we have an obligation to do so;
– by protecting evil-doers.
1869 Thus sin makes men accomplices of one another and causes concupiscence, violence, and injustice to reign among them. Sins give rise to social situations and institutions that are contrary to the divine goodness. “Structures of sin” are the expression and effect of personal sins. They lead their victims to do evil in their turn. In an analogous sense, they constitute a “social sin.”144