Real World article
(written from a Production point of view)

Mentioned in a deleted scene from the Star Trek: The Next Generation episode "Tapestry", Admiral Silona was a 24th century Starfleet flag officer assigned to Starfleet Academy.

In 2323, on their first day at the Academy, first years cadets heard a speech from Silona in the Scobee Hall. In the speech, later described by Marta Batanides as the "old welcome aboard speech", he stated, "I want you all to look to the left of you and then look to the right of you. One of you isn't going to make it through the next four years."