What are some quotes ( and page numbers ) from Lord of the Flies that shows Simon's personality?

Page
numbers are going to be difficult.  I don't know which version of the book that you have, so
chances are that my page numbers and yours won't match up perfectly.  I can get you relatively
close though.  

Page 72 in my text.  For sure in chapter 3. Here is the
quote:

"They talk and scream. . Even some of the
others. As if"

"As if it wasn't a good island."

Astonished at the interruption, they looked up at 's serious face.

"As if," said Simon, "the beastie, the beastie or the snake-thing, was
real. Remember?"

Simon is a tough character to
analyze.  I've always thought he was more weird than anything else.  I mean he's always saying
some weird things.  Of course that makes sense since Golding is presenting Simon as a sort of
prophet figure.  There is no doubt that Simon knows things.  He knows them
by feelings first, but his feelings are always confirmed.  He is the first boy to realize that
the beast is both real and fake at the same time.  It's not a real physical beast; the beast is
the power for destruction in all of them. The above quote is Simon already hinting that the
island itself might be making very real monsters of a sort.  

Page 159.
 Chapter 7

Youll get back to where you came
from.

Returning to what I said earlier about Simon being
a prophet of sorts is this quote.  Simon is talking toabout getting off of the island.  Simon
actually says the above multiple times in a few variations, but it is always the same in
concept.  Ralph will get home.  Simon never says "we."  In a way, Simon is predicting
a future outcome that is, in his mind, absolute.  Ralph will live, Simon will die.