9. Pride induces you to judge yourselves to be more than you are and to repel any comparison which might discredit you. You consider yourselves to be so much higher than your fellow men or women, be it in spirit, in social position or even in personal advantage, that the least parallel irritates and annoys you. What happens then? You give way to anger.
Investigate the origin of these outbursts of passing dementia, which make you resemble a savage by losing your self-possession and reason; and if you do, then you will almost always be faced with hurt pride. Perchance, is it not pride which has been hurt by a contradiction which makes you repel justifiable observations and angrily reject the wisest counsel? Even impatience originating from contrarieties, and often childish ones at that, comes from the importance which each individual gives to their own personality, before which it has been given to understand that everyone should bow down.
In their frenzy, wrathful people hurl themselves at everything, from their own savage nature to lifeless objects, breaking them because they do not obey! Ah! If they could but see themselves at these moments, looking on in cold blood! Either they would be afraid of themselves, or they would think themselves simply ridiculous! Imagine then the impression made on others! Even if it is merely out of respect for oneself, it behoves one to make an effort to overcome this inclination which only makes one into a pitiable object.
If we reflect that anger in no way helps, in fact it modifies our health even to putting our life at risk, then we would recognise that we are nothing more than our own victims. But above all, there is yet another consideration which should restrain us, that of the unhappiness this kind of behaviour brings to all those around us. If we have a heart, would not this anger be a motive for remorse for having caused those we love to suffer? What a terrible moral weight upon us if, in an excess of fury, we were to practise some act which we would deplore for the rest of our life!
To summarize, anger does not exclude certain qualities of the heart, but it stops us from doing any good and may cause us to practise great evil. This then should be sufficient to induce mankind to make the necessary effort in order to dominate this trait. Moreover, for those who are Spiritists, there is an instigation to do this for yet another motive that of anger being against charity and Christian humility. - A Protecting Spirit (Bordeaux, 1863).