"Not a Bug, Still Alive"

Afghanistan changed me. A car battery and an electromagnet kept me alive, but building the Mark I showed me I could be more than my worst moments. Every suit after that was therapy in titanium-gold alloy - iterative problem-solving for a brain stuck in threat-assessment mode. PTSD isn't a design flaw. It's proof I'm still fighting. If I can engineer my way out of the darkness one step at a time, so can you. Humans adapt. Humans build. Humans survive.

— Tony Stark, Iron Man, Survivor