Fringe, Season 2

Walter:
Peter! [laughs] They told me you'd be alright, but I was so worried, son.

Peter:
There was another man on that bridge. When Newton's device started to work, I saw him there. Just, walking down the bridge. He had to have been from the other side. You said that the affects of Newton's vibrations would be devastating. And… They were, they destroyed that FBI agent, they just… they disintegrated him, like he wasn't even there. But they didn't kill the man from the other side. And they didn't kill me. I'm not from here, am I? You didn't just open up a hole to the other side… You went through. And you brought me back. That's why I was able to survive Newton's device. That's why I can't remember my childhood.

Walter:
You were dying, Peter -

Peter:
That's why my mother committed suicide. Isn't it? She knew, didn't she? And when I left, the guilt was too much for her to live with. The lie.

Walter:
Peter, you need to understand, son -

Peter:
I understand, Walter. I understand everything now.

Walter:
Son -

Peter:
I am not your son! I'd like to be alone now.