“I have heard the key
Turn in the door once and turn once only
We think of the key, each in his prison
Thinking of the key, each confirms a prison.”

“This was the door to both sustenance and sanity. And we were each other's key.”

“A prison becomes a home when you have the key.”

“Men are prisoners of their genitalia and women are the keepers of the keys to paradise.”

“… one can still say that quantum mechanics is the key to understanding magnetism. When one enters the first room with this key there are unexpected rooms beyond, but it is always the master key that unlocks each door.”

“And for all these people alike, the key to healing turned out to be the same. Each had a hurt he had to forgive.”

“Prisons are the temples where devils learn to prey. Every time we turn the key we twist the knife of fate, because every time we cage a man we close him in with hate.”

“Imagination, of course, can open any door - turn the key and let terror walk right in.”

“In chains and darkness, wherefore should I stay, And mourn in prison, while I keep the key.”

“So I wait for the day
when I'll hear the key
as it turns in the lock
And the guard will say to me,
"Oh my patient prisoner
you waited for this day and finally,
you are free!
You are free!
You are free!"”