Courage is the most important virtue, the most needed characteristic. With courage you can everything else, you can accomplish anything, every important aspect of your life becomes better. Courage is always brave, yet bravery is not always courageous. Bravery is facing your fears. Courage is doing the right thing or taking the proper action in the face of fear, pain, or grief.
If you show courage you are by definition doing the right thing — integrity, honesty, humility, hard work, kindness, etc. would all fall under doing the right thing.
Courage is how you help other people. Courage is how you help yourself.