Knowledge of your enemy is half the battle. - John McClane

"Knowledge of your enemy is half the battle."

John McClane Knowledge

More from John McClane

"Now I know what a TV dinner feels like."

"Welcome to the party, pal."

"Yippee-ki-yay, motherfucker."

"I'm going to need about five minutes of peace and quiet to sort through this mess."

"We're not just after treasure. We're preserving history."

"The mind is humanity's greatest tool."

"A tidy room reflects a tidy mind."

"You can learn a lot about a person by how they keep their space."