3. Anger differs from hatred. Hatred is a chronic affection, anger an acute one. Hatred wishes evil to a man as it is evil, anger as it is just. Anger wishes evil to fall on its object in the sight of all men, and with the full consciousness of the sufferer: hatred is satisfied with even a secret mischief, and, so that the evil be a grievous one, does not much mind whether the sufferer be conscious of it or no. Thus an angry man may wish to see him who has offended brought to public confession and shame: but a hater is well content to see his enemy spending his fortune foolishly, or dead drunk in a ditch on a lonely wayside. The man in anger feels grief and annoyance, not so the hater. At a certain point of suffering anger stops, and is appeased when full satisfaction seems to have been made: but an enemy is implacable and insatiate in his desire of your harm. St. Augustine in his Rule to his brethren says: "For quarrels, either have them not, or end them with all speed, lest anger grow to hatred, and of a mote make a beam." 4. Anger, like vengeance, is then only a safe course to enter on, when it proceeds not upon personal but upon public grounds. And even by this maxim many deceive themselves. _Readings_.--Ar., _Rhet_., ii., 2; _ib_., 4, ad fin.; St. Thos., 1a 2æ, q. 46, art. 2, in corp.; _ib_., q. 46, art. 3, in corp.; _ib_., q. 46, art. 6; _ib_., q. 47, art. 2. CHAPTER V. OF HABITS AND VIRTUES. SECTION I.--_Of Habit_. 1. _A habit is a quality difficult to change, whereby an agent whose nature it was to work one way or another indeterminately, is disposed easily and readily at will to follow this or that particular line of action_. Habit differs from _disposition_, as disposition is a quality easily changed. Thus one in a good humour is in a _disposition_ to be kind. Habit is a part of character: disposition is a passing fit. Again, habit differs from faculty, or power: as power enables one to act; but habit, presupposing power, renders action easy and expeditious, and reliable to come at call. We have a power to move our limbs, but a habit to walk or ride or swim. Habit then is the determinant of power. One and the same power works well or ill, but not one and the same habit.