Courage is the most important of all the virtues, because without courage you can't practice any other virtue consistently. You can practice any virtue erratically, but nothing consistently without courage.
One isn't necessarily born with courage, but one is born with potential. Without courage, we cannot practice any other virtue with consistency. We can't be kind, true, merciful, generous, or honest.
I hope America can also be the cultural leader of the world, and use this frontier spirit to lead and show others that we need courage to go places where we have not gone before.
With Pearl Jam, everybody is so good at what they do, it's hard to get up the courage to say, Can I sing this part, or, I want to play guitar. I feel like I have more courage to do that.