Rory Hamill lost his leg while serving in the Marines, but it's hardly defined him. 

"Self-maintenance is continual. There’s no band-aid solution to what you’re going through. You must learn, evolve, and adapt to it. Use your circumstances to help others, and you’ll find that you’re actually helping yourself. No obstacle is impassable; By Endurance, We Conquer. "⠀⠀⠀⠀⠀⠀⠀⠀⠀ -Rory Hamill