But if thou shouldest reply, “Habit has a wonderful power to beguile even those who are very much in earnest:” this I likewise acknowledge; however, there is another thing which I say with it; that as it is powerful to beguile, so also is it easy to be corrected. For if thou wilt set over thyself at home many to watch thee, such as thy servant, thy wife, thy friend, thou wilt easily break off from the bad habits, being hard pressed and closely restrained by all. If thou succeed in doing this for ten days only, thou wilt after that no longer need any further time, but all will be secured to thee, rooted anew in the firmness of the most excellent habit.