One of the best exercises in meekness we can perform is when the subject Is in ourselves. We must not fret over our own imperfections. Although reason requires that we must be displeased and sorry whenever we commit a fault we must refrain from bitter, gloomy, spiteful, and emotional displeasure. Many people are greatly at fault in this way. When overcome by anger they become angry at being angry, disturbed at being disturbed and vexed at being vexed. By such means they keep their hearts drenched and steeped in passion.
Francis de Sale