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.
Saint Francis de SalesLet is walk ... joyously, dear souls, among the difficulties of this passing life ... These pains will have an end when our life ends, after which there will be only joy, only contentment, only eternal consolation.
Saint Francis de SalesChastity is the lily of virtues, and makes men almost equal to Angels. Everything is beautiful in accordance with its purity. Now the purity of man is chastity, which is called honesty, and the observance of it, honor and also integrity; and its contrary is called corruption; in short, it has this peculiar excellence above the other virtues, that it preserves both soul and body fair and unspotted.
Saint Francis de Sales