I have a friend who is very successful in business, and his motto is, 'Don't do what you can do. Do what only you can do.' First of all, you have to know what your specific, unique gift is and then you do that... every actor does that but every once in a while an actor plays a part that only they can play.
In acting, there's a type of courage you're recognized for all the time. You lose 100 pounds and play a guy with AIDS, and you get rewarded. But, in life, doing what is courageous is quiet, and no one knows about it. Courage is someone making sacrifices for their family or making selfless decisions for what they hope or feel.