“WHEN INSULTED, people typically become angry. Because anger is a negative emotion that can upset our tranquility, the Stoics thought it worthwhile to develop strategies to prevent insults from angering us—strategies for removing, as it were, the sting of an insult. One of their sting-elimination strategies is to pause, when insulted, to consider whether what the insulter said is true. If it is, there is little reason to be upset.”
~ Irvine, William B. / A Guide to the Good Life: The Ancient Art of Stoic Joy (p. 144). Oxford University Press. Kindle Edition.