The past offers a vast wealth of data regarding what people often refer to as mistakes or "life lessons". The most we can do is use the data to prevent such actions from occurring in a repetitive cycle.
I am pleased that my advice was not unwise. You are a sensible woman, Mrs. Summers. I had little doubt that you would make the best decision, based on the information you had at your disposal, and after a period of introspection to come to such a pivotal decision.
I will attend, provided there is vegetarian fare on the menu. If there is not, then I wish to be informed so that I can bring my own meal.