There are some people who are interested in building their character, but at the same time there is always a conflict between their character and their nature; for the character is made by a certain habit, but the nature says, "You must not make this a habit; I will fight with you about it." For instance a coarse person may have formed the habit of being very polite, but we can usually find him out if we speak with him for a little while, for then the conversation may end in impoliteness. It begins with politeness, it ends with impoliteness, because then the nature conquers the character, proving thereby that there was rudeness in the nature and that politeness was only an outer cover.