Quote by St. Francis De Sales
Marital intercourse is certainly holy, lawful and praiseworthy in itself and profitable to society, yet in certain circumstances it can prove dangerous, as when through excess the soul is made sick with venial sin, or through the violation and perversion of its primary end, killed by mortal sin; such perversion, detestable in proportion to its departure from the true order, being always mortal sin, for it is never lawful to exclude the primary end of marriage which is the procreation of children.
Summary
This quote emphasizes that while marital intercourse is generally considered sacred, moral, and beneficial for society, it can become harmful under specific circumstances. Excessiveness can lead to venial sins that harm the soul. Moreover, if the intended purpose of procreation is violated or perverted, it can result in mortal sin. The quote highlights that intentionally deviating from the primary goal of marriage, which is the creation of children, is always considered a severe sin. It argues that the exclusion of this fundamental purpose is morally wrong and cannot be justified.