1) Courage builds up fortitude
Fortitude is the key ingredient to a life of accomplishment. Fortitude means the strength of mind to endure adversity. Another word for adversity is called LIFE.
2) Courage is not a thought; it's an act
Courage is in the doing. Even a decision isn't considered courageous until it leaves the mind and manifests itself through action.
3) There is no courage without fear
If you're not afraid, then you're not acting courageously. John Wayne put it best: “Courage is being scared to death and saddling up anyway.”