"“CONTINENCE” differs from chastity in being entire restraint from sexual indulgence under all circumstances, while chastity is only restraint from unlawful indulgence. As we have both physical and mental chastity, so continence should be both mental and physical. Many of the observations on the subject of “Chastity” apply with equal force to continence. The causes of incontinence are the same as those of unchastity. The same relation also exists between mental and physical continence as between mental and physical chastity."