To understand how to do what is right, recruits and Marines are taught about ethics and the core values of the Marine Corps. The Corps' core values are Honor, Courage, and Commitment. These values make up the bedrock of a Marine's character. During recruit training, recruits are taught these core values and numerous others related to them, such as integrity, discipline, teamwork, duty, and "esprit de corps."
4. Semper Fi – Always Faithful
This is the Marine Corps motto and it essentially encompasses everything that a Marine is and does. The core values of the Marine Corps are honor, courage, and commitment. A Marine is always faithful to whatever endeavor he has committed to fulfill.