How often we all have heard speakers begin by calling the attention of the audience to their lack of preparation or lack of ability. If you are not prepared, the audience will probably discover it without your assistance.
Dale CarnegieDo you remember the things you were worrying about a year ago? How did they work out? Didn't you waste a lot of fruitless energy on account of most of them? Didn't most of them turn out all right after all?
Dale Carnegie