Literature Reference: 贞固足以干事，毅勇足以克难。—— 《论语》 Steadfastness suffices to accomplish tasks, and courage suffices to overcome difficulties. Source from 'The Analects'.
贞: Loyalty and steadfastness. Often used in conjunction with unwavering devotion, it signifies remaining true to one's cherished principles with resolute determination.
毅: Perseverance and tenacity. In a name, it often signifies steadfastness, which is beneficial for career advancement.
Meaning: Steadfast and courageous, symbolizing an unyielding spirit.