“It's no use locking the door after the steed is stolen.”
“That would be locking the horse after the stable door is gone, a very foolish thing to do.”
“Why did *I* lock the door? Why did YOU lock the door? Someone locked the door...”
“but i've slammed the door to my inner self; if he ever wants to force the lock again, he'll have to use a harder crowbar!”
“A brick could be used as a key to unlock a door disguised as a brick wall. The security in the lock lies not with a one-of-a-kind key, but with a key that looks like hundreds of other potential keys that make up the door. ”
“[On visitors after having a new baby...] "Put a lock on the door, barricade it if you have to. No one gets past that front door unless they come bearing one of two things: food or cleaning products!”