In contrast to my previous post, which also contains some writing done when I was eighteen years old, this one was published. It was a work of non-fiction, and contained some inaccuracies.
Besides some typos and spelling mistakes (some due to the customary usage of British English in our school), the most glaring inaccuracy is my (younger self's) prediction that we would always remember the "familiar hallways and classrooms." After I delivered the speech, my classmate, Ian Miller, took me aside and pointed out that this was not true, that we were not "sorry to leave [them]" and that we would never think of them again.
Another inaccuracy, by omission, is that I failed to predict just how ubiquitous computers would be during our lives, and that most of my classmates would one day own a computer more powerful than the one highlighted here, and that furthermore we would be carrying it around in our pocket or purse and sometimes even use it to make phone calls.
In any case, I am happy to have this valedictory address on the Internet record, and recorded here for posterity.
Here is a picture of the page (including a picture of that younger self) scanned from our high school yearbook.