Who said "Patience with yourself; urgency against your enemies."?

This quote is attributed to John McClane.

Patience with yourself; urgency against your enemies. - John McClane

"Patience with yourself; urgency against your enemies."

John McClane Patience

"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."

"Patience is a virtue I'm still learning."

"I may be a redhead, but I'm not a hothead."

"Patience is a virtue."

"Patience is a virtue I never learned."