There is no secret to getting the ripped shoulders of your dreams. If you lift hard enough with the right programming, then over time, you'll get there. Arnold spent his early life pushing the limits in the weight room, and it paid off for him.
What did he do different? He always finished his workouts. When you get to the end of a set, and you are thinking about quitting, remember Arnold's advice. "The last three or four reps is what makes the muscle grow," Arnold says. "This area of pain divides the champion from someone else who is not a champion. That's what most people lack—having the guts to through the pain no matter what happens."