If a man finds it very hard to forgive injuries, let him look at a Crucifix, and think that Christ shed all His Blood for him, and not only forgave His enemies, but even prayed His Heavenly Father to forgive them also. Let him remember that when he says the Pater Noster, every day, instead of asking pardon for his sins, he is calling down vengeance on himself.

The Maxims and Sayings of St Philip Neri (ed. St Athanasius Press, 2009) - ISBN: 9780976911845