“How long has he been dead?” Nina Sharp, Pilot - Fringe, Season 1 Episode 1
“How long has she been dead?” Nina Sharp, Brave New World P2 - Fringe, Season 4, Episode 22

“I supplied Fringe Division with the 76 model. (blows up trucks and people) This is the 77.” William Bell, Over There P2 - Fringe, Season 2, Episode 22
“Now this gun is an invention of Dr Bell’s. Shoots faster.” Jessica Holt, Brave New World P2 - Fringe, Season 4, Episode 22

“You will experience loss the way I did.” Walternate, The Day We Died - Fringe, Season 3, Episode 22
“Forgive me.” Walter Bishop, Brave New World P2 - Fringe, Season 4, Episode 22

Celebrating The Existence Of Etta Bishop, In Utero

The One Where John Noble Makes His Daughter, Samantha, Go All WTF Dad Dr Bishop

Everytime Walter tries to be independent, Astrid gets hurt.

The One About (Female, Apparently) Unicorns

Olivia: Walter. You said that you had been having a lot of shock therapy. Do you think perhaps he could have been a hallucination?
Walter: No. No, no. My hallucinations were rarely biped. And never men.

“You remember what he did to Olivia. Even you can’t be that compassionate.” -Walter, 419
“He’s been activating me.” -Olivia, 422

Theory Time

What if Olivia doesn’t die (in this timeline at least). What if the “harmonic vibrations” from that soul-magnet-bell that William Bell has in his office ‘activates’ Olivia completely and somehow turns her to his dark side. Maybe he’ll add her to his collection of super species that are already in his ark to bring into his brave new world… And if she’s pregnant - well then she can give birth to the mother of what will eventually become the Observers. She could still be alive in 2036, only she’s no longer our!Olivia. At least not until she’s rescued by the ‘old team’ & her daughter who managed to escape…

Walter: (talking to a dead guy) I had a watch similar to this, once. My uncle gave it to me. Uncle Heinrich. He loved rhubarb. He was always-
Jessica: Am I gonna die?
Walter: (startled) I can’t answer that. Not yet.
Jessica: What are you?
Walter: I’m human, what are you?

William Bell: You taught me, there are as many atoms in the human body as there are stars in the sky. That’s how many atom bombs I am.