"A good friend will always stab you in the front."
— Oscar Wilde

"It is easier to forgive an enemy than to forgive a friend."
— William Blake

"It's hard to tell you has your back from who has it long enough just to stab you in it...."
— Nicole Richie

""Ah," she cried, "you look so cool."

Their eyes met, and they stared together at each other, alone in space. With an effort she glanced down at the table.

"You always look so cool," she repeated.

She had told him that she loved him, and Tom Buchanan saw."
— F. Scott Fitzgerald (The Great Gatsby)

"In this totally dark world, you can't live unless you're needed by someone."
— Hotaru Odagiri

"Anakin, you're breaking my heart."
— Padme

"No one fights dirtier or more brutally than blood; only family knows it’s own weaknesses, the exact placement of the heart. The tragedy is that one can still live with the force of hatred, feel infuriated that once you are born to another, that kinship lasts through life and death, immutable, unchanging, no matter how great the misdeed or betrayal. Blood cannot be denied, and perhaps that’s why we fight tooth and claw, because we cannot—being only human—put asunder what God has joined together."
— Whitney Otto (How to Make an American Quilt)

"There is nothing like wounded affection for giving poignancy to anger."
— Elizabeth Gaskell (Wives and Daughters)

"It had been all right as long as they could laugh at me and appear clever at my expense, but now they were feeling inferior to the moron. I began to see that by my astonishing growth I had made them shrink and emphasized their inadequacies. I had betrayed them, and they hated me for it (96)."
— Daniel Keyes (Flowers for Algernon)

"'You teach me how cruel you've been -- cruel and false. Why did you despise me? Why did you betray your own heart, Cathy? I have not one word of comfort -- you deserve this. You have killed yourself. Yes, you may kiss me, and cry; and wring out my kisses and tears. They'll blight you -- they'll damn you. You loved me -- then what right had you to leave me? What right -- answer me -- for the poor fancy you felt for Linton? Because misery, and degradation, and death, and nothing that God or satan could inflict would have parted us, you, of your own will, did it. I have not broken your heart -- you have broken it -- and in breaking it, you have broken mine. So much the worse for me, that I am strong. Do I want to live? What kind of living will it be when you -- oh God! would you like to live with your soul in the grave?'"
— Emily Brontë (Wuthering Heights)

"This wasn't strong-willed, fly-by-the-seat-of-her-miniskirt Kate that I'd befriended last year. You think you know a girl- and then she goes and loses her virginity at a Mardi Gras party and goes soft."
— Lauren Kate

"You see, I have no intention of breaking down her prodigiousness. I want her to believe in God and virtue and the sanctity of marriage and still not be able to stop herself. I want the excitement of watching her betray everything that's most important to her."
— Vicomte de Valmont

"Ich liebe den Verrat, aber ich hasse den Verräter."
— Julius Caesar

"Verträge bricht man um des Nutzens willen."
— Niccolò Machiavelli (The Prince)

"(Her husband's departure ...)had picked Mildred up by the hair and dropped her down at the doorstep of insanity.
From "Butterfly on F street""
— Edward P. Jones

"To betray you must first belong."
— Harold Philby

"You do not win a war by dying for your country. You win a war by making sure that some poor bastard dies for his."
— Mal Peet