Yeah it's nothing special, there's really no quotable lines in Hellsing, but it takes a lot of quotes from other respectable material.
I've spent hours trying to figure out the meaning behind "The Bird of Hermes is My Name,
Eating my Wings to Make Me Tame."
It's something Alucard quotes in dialog and it's also on his coffin. It's a quote straight from the Riply Scroll, further pushing the theory that Alucard's hax is related to some sort of alchemy. But once I tried to explore the actual meaning of the words in connection to what Alucard is, it takes on a whole new level.
I've concluded that the first line essentially means that Alucard is a collector of souls, and the second line refers to him submitting his powers to Integra.
But that's just one of a million examples of the references Hellsing likes to make a lot of that suddenly cause a lot of interesting new twists and symbolism into the story.