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“Books, purchasable at low cost, permit us to interrogate the past with high accuracy; to tap the wisdom of our species; to understand the point of view of others, and not just those in power; to contemplate--with the best teachers--the insights, painfully extracted from Nature, of the greatest minds that ever were, drawn from the entire planet and from all of our history. They allow people long dead to talk inside our heads. Books can accompany us everywhere. Books are patient where we are slow to understand, allow us to go over the hard parts as many times as we wish, and are never critical of our lapses. Books are key to understanding the world and participating in a democratic society.”
― Carl Sagan, The Demon-Haunted World: Science as a Candle in the Dark

“Remember not only to say the right thing in the right place, but far more difficult still, to leave unsaid the wrong thing at the tempting moment.”
― Benjamin Franklin

“Always do what is right. It will gratify half of mankind and astound the other.”
― Mark Twain

“If you want to know what a man's like, take a good look at how he treats his inferiors, not his equals.”
― J.K. Rowling, Harry Potter and the Goblet of Fire