Brother, if you commit a sin and take pleasure in it, the pleasure passes but the sin remains. But if you do something virtuous, even though you are tired, the tiredness passes but the virtue remains - Saint Camillus de Lellis.

Saint Camillus de Lellis, you suffered as a young man from an addiction to gambling and lived a destitute life. God called you out of that darkness and you responded. Please pray for me, that the light of Christ will enter into my own darkness and sin, and from that place of suffering, transform me into a living saint, fully devoted to the service of God and others. Saint Camillus, pray for us. (My Catholic Life)