Definitions: (1) holding fast to ideals, ideas, habits, or possessions; (2) having a highly retentive memory

Synonyms: courageous, determined, persevering, persistent, tough

• Let me tell you the secret that has led me to my goal. My strength lies solely in my tenacity. — Louis Pasteur (1822-1895) French chemist & microbiologist
• Tenacity is not about avoiding being overwhelmed but being indomitable in the face of the overwhelming odds of your venture’s failure. — Andy Dunn (1979-) American entrepreneur

Symbol: bamboo {Tenacity, Endurance, and Longevity}