You know, and I know, the cause of this accident. It is due to the adventurous, pioneering spirit of our race. It has been like in the past, it is like that in the present, and I hope it will be in the future. Here is a great imaginative project, to build a machine with twice the speed and twice the height of any existing machine in the world. We all went into it with our eyes wide open. We were conscious of the dangers that were lurking in the unknown. We did not know what fate was going to hold out for us in the future.