If we're going with quotes / speeches, here's one of my absolute favourites - just one among dozens:
Babylon 5 was the last of the Babylon stations. There would never be another. It changed the future...and it changed us. It taught us that we have to create the future...or others will do it for us. It showed us that we have care for one another, because if we don't, who will? And that true strength sometimes comes from the most unlikely places. Mostly, though, I think it gave us hope. That there can always be new beginnings...even for people like us.
- Ivanova, "Sleeping in Light"
Figured I'd get that in before Neroon