I read up to the 18th page, so forgive me if some of these have been posted.
"When in doubt, C4. Ha ha!" - Jamie Hyneman
"The great thing about working with [Guy who works at bomb range] is that when we say we want a hole in a wall, he just says 'How big?'" - Adam Savage
[After seeing Jamie get dressed up in a protective suit to check on a failed experiment]"It's not too dissimilar to how Jamie was dressed when he first came to Earth." - Adam Savage
"This side towards enemy" - Written on M18A1 mines, better known as Claymores
And a couple of serious ones.
"I have both held and beheld great power, and of it I know one thing: It corrupts men." - I think Alexander The Great said this, but I'm not sure. Can anyone verify?
"We each owe a death - there are no exceptions - but sometimes, oh God, the Green Mile seems so long." - Tom Hanks' character in The Green Mile