Taken from THE 1917 OR PIO-BENEDICTINE CODE OF CANON LAW Dr. Edward N. Peters Curator, Ignatius Press, 2001
TITLE 7 On Marriage
Canon 1012 (1983 CIC 1055)
§ 1. Christ the Lord raised the marriage contract itself to the dignity of a sacrament among the baptized.
§ 2. Therefore among the baptized there can be no valid contract of marriage without its also being a sacrament.
Canon 1013
§ 1. The primary end of marriage is the procreation and education of children; the secondary [end] is mutual support and a remedy for concupiscence.
§ 2. The essential properties of marriage are unity and indissolubility, which in Christian marriage obtain special firmness by reason of the sacrament.