" I’ve had many enemies over the years. If there’s one thing I’ve learned, it’s never engage in a fight you’re sure to lose. On the other hand, never let anyone who has insulted you get away with it. Bide your time and strike back when you’re in a position of strength – even if you no longer need to strike back. "

― Stieg Larsson , The Girl with the Dragon Tattoo (Millennium, #1)