It is a great honour for me to be invited to give this lecture but it has been rather a problem to know how best to tackle it. It is a great temptation when you are my age, and you have been in the aerospace business as long as I have, to reminisce about the things that you have done in the past—and it is one that, in part, I could not resist. If by any chance any of the younger members of the community that still have their working lifetime in front of them can discern any sort of a message here and there in what I say, then I hope they will do so and that they will have the courage to do something about it.