Many people tout the importance of living with authenticity,
While I appreciate the sentiment, the message is often paired with criticism or used to point out when someone is operating outside of cultural norms (just about the only time interesting things happen--connecting dots, finding cures, reframing problems, etc.).
Someone who says one thing and does another is accused of not leading an authentic lifestyle.
Though, if we can appreciate that all behavior is an expression of WHO we think we are, then all behavior is, in fact, authentic.
The requisite to fully understanding this is embracing a practice of empathy, which is far more demanding and difficult than merely labeling one's actions.
"Knowing yourself is the beginning of all wisdom." Aristotle