Quotes: Black Knight

"Having spurned the righteous callings of decency and chivalry, Black Knights are now solely dedicated to the cause of pure evil, making them sworn enemies of Knights and Kings alike. Warriors through and through, Black Knights detest any form of work that doesn't involve the repeated and bloody use of their trusty sword. Their sturdy plate armour allows them to survive prolonged and sustained punishment in combat and their great strength and bravery means they gleefully join the front ranks in any potential bloodbath."
Dungeon Keeper 2 Instruction Manual

"Battle doesn't need a purpose; the battle is its own purpose. You don't ask why a plague spreads or a field burns. Don't ask why I fight."

The knights take on the duties of shadows with pride.
Nullity Revenger, Masquerade, Cardfight!! Vanguard

My father wanted a knight in our family, and thought he'd found one in Gregor, who at thirteen towered over enough men that they called him "The Mountain." Sure, Gregor looks quite the champion from a distance... but a mountain can't cleave a man in half with one blow, and won't break a wench's face if she talks. Through Lord Tywin's influence, Prince Rhaegar Targaryen kindly anointed my brother personally - a great honour for our family, everyone said. One year later, "Ser" Gregor chivalrously sacked the Prince's city, brained the Prince's baby, and raped and murdered the Prince's wife, winning our family yet more "honour" from the new King and Queen.
Sandor Clegane, Game of Thrones: History and Lore - House Clegane