^ Another good one...
When I was a kid, I used to wish some stranger would come and tell me my family wasn't really my family. Oh, they weren't bad people, they were just insignificant. I wanted to be different... special. I wanted to change. A new name, a new life. The watchmaker's son became a watchmaker. It is so futile. And I wanted to be important.
- Syler ('6 Months Ago' Season 1)
Yeah I noticed that one! It was pretty much the first thing he ever said in the series. But at that point, weren't the writer still thinking they'd kill him off in the season finale, in which case they couldn't have been thinking of him being a Petrelli yet. I think they just throw stuff out there open-endedly that could be used in the future in various ways.
I have a theory where they're going with Sylar. Peter's lost the seeing ability so now he can't use it to save the world. Sylar will do it instead; using the power that makes him evil to be a hero. Whee!