131. Though the passions are good in themselves, they are often morally dangerous. The regulation of the passions through the virtues of fortitude and temperance will be treated later on, but we shall indicate here some natural means by which, God helping, their first motions may be controlled. (a) Thus, if a passion is not strong, it may be repressed directly by command of the will. Example: The impulse to anger may sometimes be checked by the command of silence. (b) If a passion is strong, it may be combated through other activities which are its opposites or which, through the amount of energy they call for, will diminish proportionately the force of the passion. Examples: In time of fear one can fall back on thoughts of confidence; in time of mourning one can seek joy or alleviation in the society of friends or in the repose of sleep. Study or other strenuous occupation is an excellent means to overcome impetuous passion. (c) If a passion is persistent, it may be diverted to some lawful object vividly represented and held in the imagination and thoughts. Examples. Those who are inclined to love immoderately the world or the things that are in the world should direct their love to divine goodness. Those who are inclined to be too fearful of men should think how much more God is to be feared. Question II GOOD AND BAD HABITS 132. Having considered human acts and the passions, we now pass to a consideration of the principles from which acts proceed proximately. These principles are, first, the faculties, powers or forces of the soul (such as the intellect, will, sense, appetite, and vegetative powers); and, secondly, the habits which permanently modify the faculties. For some faculties may be turned in various directions, either favorably or unfavorably, as regards their ends, and it is the stable bent given to a faculty that is called a habit. Thus, the intellect may be directed towards its end, which is truth, by the habit of knowledge; or away from that end by the habit of ignorance. Likewise, the will may be directed towards or away from its end, which is good, by virtue or vice. The faculties are treated in Psychology, but the habits, since they turn the faculties towards good or evil, must be considered in Moral Theology, as well as in philosophy. Art. 1: HABITS IN GENERAL (_Summa Theologica_, I-II, qq. 49-54.) 133. Definition.--A habit is a perfect and stable quality by which a being is well- or ill-affected in itself, or with regard to its motions. It differs from mere disposition or tendency, which is an imperfect and transitory quality. Thus, a sallow complexion is a habit; a blush, a disposition. 134. Division.--Habits are variously divided, as follows: