One from Shana-chan:
"Personal opinions are not useful for accurate analysis and logical contemplation."

Another one from Madlax:
"To live doesn't actually mean that you are alive."

(All translations done by the respective fansubbers. Any mistake was not intended but hey, they work fine! Lol)
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"Everyone sees what you seem to be, but few know what you are." Niccolo Machiavelli.

"First they ignore you, then they ridicule you, then they fight you, then you win." Gandhi

"The reality of our circumstances will never be enough to achieve happiness." UnknownFact