do not believe that I am made of the stuff which constitutes heroes, because, in all of the hundreds of instances that my voluntary acts have placed me face to face with death, I cannot recall a single one where any alternative step to that I took occurred to me until many hours later. My mind is evidently so constituted that I am subconsciously forced into the path of duty without recourse to tiresome mental processes. However that may be, I have never regretted that cowardice is not optional with me.