10. Because of the false idea that it is not possible for a person to reform their own nature, they judge themselves exempt from even trying to correct their defects. This applies especially to those defects in which the person willingly takes pleasure, or those which would take a great deal of perseverance to eradicate. This is why, for example, an individual who is prone to anger almost always finds excuses for this temperament. Instead of confessing themselves guilty, they accuse their organism and in this manner accuse God for their faults. This is yet one more of the consequences of pride to be found in the midst of our imperfections.
Undoubtedly there are temperaments which lend themselves more readily than others to violent acts, just as there are muscles which are more flexible than others, so lending themselves better to acts of strength. However, do not believe it is here that the first cause lies, but persuade yourself that a pacific Spirit, even when in a sickly body, will always be pacific. Just as much as a violent Spirit, even when occupying a lymphatic body will not be more mild, only that the violence will take on another aspect In this case the anger would be more concentrated, just as in the first case the anger would be more expansive.
Therefore it is not the body which gives the anger to those who do not already possess it, in the same manner neither does it cause other vices. All virtues and vices are inherent in the Spirit. If this were not the case, where would be the merit and responsibility? The person who is bodily deformed can do nothing to remedy this situation because the Spirit takes no part in it, but what can be modified is the actual Spirit, when it wants to, by means of strong desire. Does not experience show us up to what point the power of desire can take us when we look at the truly miraculous transformations happening all around us every day? Then let us convince ourselves that Man only remains bound by vices because he so desires! Those who really wish to liberate themselves can always achieve this end. If it were not so, then the law of progress would not be able to exist. - HAHNEMANN (Paris, 1863).