Here's the important part that really highlights democratic values.  The personal part about his torture.  The part right from his heart, that no speech writer could fake:   (The full text)

"When I didn't get better, and was down to about a hundred pounds, they put me in a cell with two other Americans. I couldn't do anything. I couldn't even feed myself. They did it for me. I was beginning to learn the limits of my selfish independence. Those men saved my life."

"I fell in love with my country when I was a prisoner in someone else's. I loved it not just for the many comforts of life here. I loved it for its decency; for its faith in the wisdom, justice and goodness of its people. I loved it because it was not just a place, but an idea, a cause worth fighting for. I was never the same again. I wasn't my own man anymore. I was my country's."

This is what makes soldiers fight, they are fighting for the person next to them, and all of US.  This is what makes union members man the picket line.  This is what makes people help the person who is down to get up.  This is the altruism democrats start out with.

This is why McCain  had great respect from the left before he sided with the selfish policies of the bush administration.  You can tell he is sincere.  So why has he been sucked into the policies that do just the opposite.

Bush policies, that McCain voted for 95% of the time, put the wealthy and huge corporations way up on top financially, cutting their taxes, and push the poor amd middle class down, saying raise yourselves up on your own.  We can't help.

Just the opposite of the lesson McCain expresses so eloquently.

Fighting the wars that McCain hates (I believe him) for all the wrong reasons, oil and corporate profit, based on lies.  Employing kidnapping, torture, murder, and indefinite incarceration without trial as an official state policy.  Canceling the very heart of our legal rights, habeus corpus itself.

Using others self sacrificing patriotism for cynical corporate empire.  100s of thousands of lives lost for lies and profit.  And McCain has supported it all the way.

He is a great man, no doubt.  But his judgement does not match the wisdom he obviously has received at great personal sacrifice for the country he loves, and as Obama says, the country we all love.