If you can't stop the bad thoughts from coming to visit, at least you can make fun of them while they're hanging around.

You don’t have to run faster than the bear to get away. You just have to run faster than the guy next to you.

Animals do not do what they have done. Animals kill to eat, to defend themselves or their own, and to protect their territory. Not for the joy of it. Not for the lust of it...Only humans do that, wizard.

Doroga thumped a finger against his skull. Head got nothing to do with the heart. Your heart wants what it wants. Head got to learn that it can only kill the heart or else get out of the way

He seemed to be at that most dangerous of ages, where strength, skill, and confidence met naïveté and idealism; when young men skilled at the crafts of violence could be manipulated into employing those skills with brutal efficiency--and without questions.

Paranoia is a survival trait when you run in my circles. It gives you something to do in your spare time, coming up with solutions to ridiculous problems that aren't ever going to happen. Except when one of them does, at which point you feel way too vindicated. - Harry Dresden, Changes, Jim Butcher

Magic is a kind of energy. It is given shape by human thoughts and emotions, by imagination. Thoughts define that shape—and words help to define those thoughts. That’s why wizards usually use words to help them with their spells. Words provide a sort of insulation as the energy of magic burns through a spell caster’s mind.