Bravery

What truly makes a person brave? Or a coward? Why do we classify people like this? Do we truly do it based on actions, or on appearance? And if we do classify based on actions, how can we be sure that we are judging the truth? The way actions look after the fact is entirely different than the way they look during the fact. And if all seems lost, do you save those with you and run? Is that really only cowardice if the people who stayed are triumphant? And is they die, if their lives are lost, is the runner the hero then? Is he the one who knew when to quit and save himself? Is that truly the way we work? Is it a flawed way of thinking, and a flawed way of life? Are we all truly cowards? Or are we all truly heroes?