Remarkably pungent stench.

Walter

John, he can never know that you exist. There is no other road for him.

Olivia

Fauxlivia: So what happened to him?
Olivia: My stepfather? I killed him.

At the risk of sounding sentimental, I've always thought there are people who leave an indelible mark on your soul. An imprint that can never be erased.

Broyles

You know what they say, even when it's the darkest, you can step into the light.

John

Alt-Lincoln: You hate being out here, don't you?
Olivia: Why do you say that?
Alt-Lincoln: Because she would hate it.
Olivia: I'm fine with it.

Fauxlivia: Waddya think?
Alt-Lincoln: Blonde looks good on you.
Fauxlivia: Yeah, well good think Frank likes the red.
Alt-Lincoln: I didn't say I didn't like the red. You look good in both.

Olivia: Twenty three murders. Why haven't I heard of them?
Broyles: Because these crimes weren't committed over here. We've been asked to assist on this case. Is that going to be a problem?

Walter: Kennedy! Help me!
Lincoln: Lincoln!

Even I don't have drugs strong enough to forget they kidnapped Olivia to the other side.

Walter

I need to erase someone from time.

Observer

Tim: Night Doctor Bishop.
Walter: Night Donny.
Tim: It's Tim, sir.
Walter: Night Timmy.

Fringe Season 4 Quotes

You know they did a study on sarcastic people, and they get more illnesses than other people. Something to do with negative energy.

Robert Danzig

Fauxlivia: You know, being you and living your life, only me more homesick for my universe.It must be hard to develop trust in people when all you've got is yourself. It must be terribly lonely.
Olivia: Just because you have walked in my shoes, don't you think for a moment that you know me.
Fauxlivia: Yeah, keep telling yourself that.