Fringe Season 1 Episode 8

Walter: Actually I was referring to the equation. Dashiell was obsessed with it.
Olivia: Obsessed. In what way?
Walter: He couldn't complete it. I tried to help him solve it once and he came at me with a plastic spork.

Olivia: What is it, Walter? Can we talk to him?
Walter: I guess that would depend on whether he has succeeded in killing himself or not.

Walter: They hoped to broadcast the flashing lights during commercials so that the viewers would have no choice but to buy their products. Unfortunately, it merely caused nausea which was unfortunate because apparently, people don't like to shop when they feel like they're going to throw up.

Walter: And you look different too, somehow. That smile. Have they altered your medication? Wouldn't surprise me. These medieval quacks are more proficient at phrenology than psychopharmacology.
Dashiell: I miss your jokes, Walter.

Peter: After some of the things I've seen in the last three months, Walter strikes me as being one of the sanest people I know.

Joanne: Seems crazy that some numbers can make a machine like this work.
Mitchell: Look around your house, your office, your kitchen--numbers make everything work.