Or the quote that goes something like, brave men are like ordinary men but they're brave for 5 minutes longer.

I also like the concept of fear times confidence/ability equalling bravery. A brave person is fearful but is capable of overcoming the fear all the same. Meanwhile, an imbalance of these two creates these distortions:

• too much fear with too little confidence = coward
• too much fear with too much confidence = extremely anxious but using excessive force as a coping mechanism
• too little fear with too little confidence = depressed and hopeless
• too little fear with too much confidence = reckless