Everything has a beginning and an end.

Eve

Rosalee [on potion ingredients]: There’s the blood of three opposing forces, a Grimm, a Wesen, and a Hexenbiest.
Monroe: Well, yeah, that *would* be next to impossible, considering a Grimm will kill any Wesen who asks for its blood, and a Hexenbiest’ll… pretty much kill anything for any reason.

Rosalee: Nick, it’s the strongest poison I know of.
Monroe: Supposedly, just this side of nuclear.
Nick [emphatically]: Let’s do it!

Renard: There’s no need to be scared, sweetie.
Diana: I’m not, anymore.
Renard: Well, good! Because we have something that will take care of him once and for all.
Diana: Oh! So you know he’s coming here.
Adalind: WHAT?!

Renard: I’ll die before I let you have her [Diana].
Zerstörer: I know!

Marie Kessler: What you think you have to do is not what must be done. Trubel is right.
Kelly Burkhardt: He can’t take from you, it has to be given *to* him.
Marie Kessler: That is why he has taken everyone you loved, Nick. So that you would give him what he wants.
Kelly Burkhardt: If you do this, you would sacrifice the world to endless pain and suffering.
Marie Kessler: The world you saw in the other place.
Nick: I want my friends back… I want Adalind… and Diana… I want my *son*! I want them all back!
Kelly Burkhardt: You *can* defeat him.
Nick: I tried! I can’t!
Kelly & Marie [simultaneously]: You can!
Kelly Burkhardt: With the strength of one’s blood!

Kelly Burkhardt: The strength that we need, we all need, comes from our family. It’s where we’ve always found the way and the will to fight.
Marie Kessler: And with *that*, we can defeat any evil.

Adult Kelly [narrating]: “He [Nick] didn’t know what to tell them. But this time, Zerstörer did *not* come through the mirror, anywhere in the world. Because, in the final, epic battle, with the terrible beast from the Other Place, Nick Burkhardt discovered that the only way to defeat such evil was with the strength of his blood: his aunt Marie, his mother Kelly, and Trubel, his third cousin on his mother’s side. The power of our ancestors. And though the people of our world would never know how close they had come to hell on Earth, *we* knew. Because he never turned away from who he was -- a Grimm. And for that reason, the world was changed. Now, some will say it’s just a myth, legend, or fairy tale. But I know it’s true, because my father told me so.”

Grimm Season 6 Episode 13 Quotes

Rosalee [on potion ingredients]: There’s the blood of three opposing forces, a Grimm, a Wesen, and a Hexenbiest.
Monroe: Well, yeah, that *would* be next to impossible, considering a Grimm will kill any Wesen who asks for its blood, and a Hexenbiest’ll… pretty much kill anything for any reason.

Everything has a beginning and an end.

Eve