For A General Rule You May Be Sure That Complaining Is Sin

Complain as little as possible of your wrongs, for as a general rule you may be sure that complaining is sin; the rather that self-love always magnifies our injuries: above all, do not complain to people who are easily angered and excited. If it is needful to complain to someone, either as seeking a remedy for your injury, or in order to soothe your mind, let it be to some calm, gentle spirit, greatly filled with the Love of God; for otherwise, instead of relieving your heart, your confidants will only provoke it to still greater disturbance; instead of taking out the thorn which pricks you, they will drive it further into your foot. – Saint Francis de Sales