Interesting topic Everlong! My personal favorites include (Not always from memory
"It is not the critic who counts....The credit belongs to the man in the arena, whose face is marred by dust and sweat and blood; who strives valiantly...who knows the great enthusiasms, the great devotions; who spends himself in a worthy cause; who at best knows in the end the triumph of high achievement, and who at worst, if he fails, at least fails while daring greatly."
When everyone's special, no one is.
~Syndrome, The Incredibles
Treat everyone with politeness, even those who are rude to you - not becuase they are nice, but because you are.
"Any intelligent fool can make things bigger, more complex, and more violent. It takes a touch of genius -- and a lot of courage -- to move in the opposite direction."
"The eternal mystery of the world is its comprehensibility."
"Science without religion is lame. Religion without science is blind."
"Anyone who has never made a mistake has never tried anything new."
Also, G.K. Chesterton, who probably deserves his own post -
"Christianity has not been tried and found wanting. Rather, it has been found difficult, and left untried."
"The true soldier fights not because he hates what is in front of him, but because he loves what is behind him."
"To have a right to do a thing is not at all the same as to be right in doing it."
"We do not need to get good laws to restrain bad people. We need to get good people to restrain us from bad laws."
“Do not be so open-minded that your brains fall out."
"Reason is itself a matter of faith. It is an act of faith to assert that our thoughts have any relation to reality at all."
“In prosperity, our friends know us. In adversity, we know our friends”
“There is a road from the eye to the heart that does not go through the intellect.”
“By a curious confusion, many modern critics have passed from the proposition that a masterpiece may be unpopular to the other proposition that unless it is unpopular it cannot be a masterpiece.”
“The thing I hate about an argument is that it always interrupts a discussion.”