I'm trying to find a specific quote from some piece of 40K fluff or other; I think it was one of those little mottos they put in boxes randomly scattered about the pages of sourcebooks.
It was supposed to be from an Adeptus Mechanicus Magos and, as far as I can remember, it whent something along the lines of:-
"The universe is not a puzzle-box to be examined ... something-something ... the universe changes as it is looked at ... something-something ... a powerfull man has only to look upon the universe in order to change it!"
Or something like that anyway.
I have checked Lexicanum's quotes page to no avail and its driving me batty trying to remember where I read it, help me Conclave-Wan-Kenobi, you're my only hope!