Never Complain; Never Explain

"Explaining yourself is essentially an attempt to seek another’s approval. It shows you’re stung that they’ve withdrawn that approval, and desirous of getting it back. When you show that you care about an opinion that you, and any observers, know you really shouldn’t, you show weakness. In losing the fight between trying to ignore them and craving the catharsis of engagement, you demonstrate a failure of self-control."