The eight key concepts of Soo Bahk Do Moo Duk Kwan and their literal translation:

1. Yong Gi - Courage (Brave / Energy)

2. Chung Shin Tong Il - Concentration (Clean, Clear / God / Govern / One)

3. In Neh - Endurance (Endure / Patience)

4. Chung Jik - Honesty (Right / Straight)

5. Kyum Son - Humility (Humble / Humble)

6. Him Cho Chung - Control of Power (Power / Manage / Right)

7. Shin Chook - Tension and Relaxation (Relaxation, Expand / Tension, Contract)

8. Wan Gup - Speed Control (Slow / Fast)