What are the levels of bravery?

Bravery can be categorized into several levels, often ranging from simple acts of courage to extraordinary feats. At the basic level, it may involve facing minor fears, such as speaking in public or standing up for oneself. Intermediate bravery might include defending others or confronting social injustices. The highest level often encompasses self-sacrifice or risking one's life for the greater good, demonstrating profound moral courage and commitment.